TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 9712 653 187 Total Number of Pages : 2 (including this page)

Ahmed Obaidly P.O. Box 41015 Abu Dhabi United Arab Emirates

Investment Vehicle : Ahmed Obaidly Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$905.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,095, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,095 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Ahmed Obaidly Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 44 171 499 4284 Total Number of Pages : 2 (including this page)

Ramzi A. Dalloul 15 Park Towers 2 Brick Street London W1Y 7DF United Kingdom

Investment Vehicle : Arab Investment and Management Corporation N.V. Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$905.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,095, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,095 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Arab Investment and Management Corporation N.V. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (1) 345 949 0993 Total Number of Pages : 2 (including this page)

Christine Godfray P.O. Box 1100G Grand Cayman Cayman Islands

Investment Vehicle : Baer US Venture Equities, LTD. Commitment : US$8,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$3,622.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$40,000. Funding Obligations

Your net funding obligation is US$36,378, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$36,378 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Baer US Venture Equities, LTD. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (1) 345 949 0993 Total Number of Pages : 2 (including this page)

Peter W. C. Goulden P.O. Box 1100G Grand Cayman Cayman Islands

Investment Vehicle : Baer US Venture Equities, LTD. Commitment : US$8,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$3,622.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$40,000. Funding Obligations

Your net funding obligation is US$36,378, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$36,378 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Baer US Venture Equities, LTD. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (41) 75 237 5859 Total Number of Pages : 2 (including this page)

Michael von und zu Liechtenstein Herrengasse 21 Vaduz FL-9490 Lichtenstein

Investment Vehicle : Bartlow Securities LTD. Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$905.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,095, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,095 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Bartlow Securities LTD. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (41) 22 310 44 41 Total Number of Pages : 2 (including this page)

Christian Wagner 12 Cours des Bastions Case Postale 3341 Geneva 3 CH-1211 Switzerland

Investment Vehicle : Bartlow Securities LTD. Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$905.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,095, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,095 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Bartlow Securities LTD. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (971) 2 340 747 Total Number of Pages : 2 (including this page)

Moncef Ben Hamida P.O. Box 203 Abu Dhabi U.A.E.

Investment Vehicle : Bin Hamoodah Co. Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$905.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,095, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,095 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Bin Hamoodah Co. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (971 2) 340 747 Total Number of Pages : 2 (including this page)

Samir A. Hijazi P.O. Box 203 Abu Dhabi U.A.E.

Investment Vehicle : Bin Hamoodah Co. Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$905.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,095, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,095 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Bin Hamoodah Co. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (41) 75 237 58 59 Total Number of Pages : 2 (including this page)

Michael von Liechtenstein P.O. Box 339 Vaduz 9490 Lichtenstein

Investment Vehicle : Campbeltown Properties Ltd., B.V.I. Commitment : US$5,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$2,234.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$25,000. Funding Obligations

Your net funding obligation is US$22,766, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$22,766 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Campbeltown Properties Ltd., B.V.I. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (41) 22 312 40 68 Total Number of Pages : 2 (including this page)

CIF S.A. Case Postale 3146 Geneva 3 CH-1211 Switzerland

Investment Vehicle : Candida Fund Inc. Commitment : US$3,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$1,358.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$15,000. Funding Obligations

Your net funding obligation is US$13,642, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$13,642 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Candida Fund Inc. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 966 2 669 6356 Total Number of Pages : 2 (including this page)

Sami Baarma P.O. Box 15844 Jeddah 21454 Saudi Arabia

Investment Vehicle : Carpal Holdings Limited Commitment : US$5,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$2,249.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$25,000. Funding Obligations

Your net funding obligation is US$22,751, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$22,751 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Carpal Holdings Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 1 212 805 2554 Total Number of Pages : 2 (including this page)

Jagan Reddy 33 East 67th Street New York, NY 10021 USA

Investment Vehicle : Carpal Holdings Limited Commitment : US$5,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$2,249.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$25,000. Funding Obligations

Your net funding obligation is US$22,751, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$22,751 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Carpal Holdings Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 41 1 241 6356 Total Number of Pages : 2 (including this page)

Mailing Schaeffner Reitergoisse 9-11 P.O. Box 131 Zurich 8027 Switzerland

Investment Vehicle : Davos Limited Commitment : US$1,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$453.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$5,000. Funding Obligations

Your net funding obligation is US$4,547, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$4,547 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Davos Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 41 22 317 5572 Total Number of Pages : 2 (including this page)

Jean Letore 16, Quai General Guisan P.O. Box 3496 Geneva - 3 CH-1211 Switzerland

Investment Vehicle : Davos Limited Commitment : US$1,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$453.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$5,000. Funding Obligations

Your net funding obligation is US$4,547, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$4,547 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Davos Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 1(561) 338-7145 Total Number of Pages : 2 (including this page)

Felix A. Smolka 701 Sanctuary Drive Boca Raton, FL 33431

Investment Vehicle : Durant Trading, L.C. Commitment : US$1,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$453.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$5,000. Funding Obligations

Your net funding obligation is US$4,547, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$4,547 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Durant Trading, L.C. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 44 1481 722 046 Total Number of Pages : 2 (including this page)

James McDonald P.O. Box 141, La Tonnelle House Les Banques St. Sampson GYI 3HS Guernsey, Channel Islands

Investment Vehicle : Fielding Holdings Limited Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$905.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,095, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,095 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Fielding Holdings Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 1713 871 9938 Total Number of Pages : 2 (including this page)

Hani Qattan 5404 Cedar Creek Houston, TX 77056

Investment Vehicle : Fielding Holdings Limited Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$905.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,095, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,095 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Fielding Holdings Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (33) 1 47 20 00 07 Total Number of Pages : 2 (including this page)

Elie Chkeiban 42, Rue de Bassano Paris F-75008 France

Investment Vehicle : Financial Investments Corp. LTD. Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$905.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,095, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,095 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Financial Investments Corp. LTD. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (44) 1481 711 354 Total Number of Pages : 2 (including this page)

David Dickens P.O. Box 199 Victory House, Le Truchot Guernsey GY1 4GQ Channel Islands, UK

Investment Vehicle : Financial Investments Corp. LTD. Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$905.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,095, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,095 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Financial Investments Corp. LTD. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (41) 22 780 24 36 Total Number of Pages : 2 (including this page)

Gerald J. Meyer 7, Rue de la Bergère Meyrin CH-1217 Switzerland

Investment Vehicle : Firmenich International SA Commitment : US$5,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$2,247.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$25,000. Funding Obligations

Your net funding obligation is US$22,753, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$22,753 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Firmenich International SA Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (966) 1 442 2203 Total Number of Pages : 2 (including this page)

Abdul-Amir Badrud-Din P.O. Box 930 Riyadh 11421 Saudi Arabia

Investment Vehicle : H.R.H. Prince Talal Bin Abdul-Aziz Commitment : US$1,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$453.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$5,000. Funding Obligations

Your net funding obligation is US$4,547, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$4,547 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: H.R.H. Prince Talal Bin Abdul-Aziz Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 41 75 237 65 81 Total Number of Pages : 2 (including this page)

Urs Eichenberger P.O. Box 237 Vaduz/Liechtenstein FL-9490

Investment Vehicle : Hilmarton Investment S.A., Panama Commitment : US$10,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$4,528.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$50,000. Funding Obligations

Your net funding obligation is US$45,472, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$45,472 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Hilmarton Investment S.A., Panama Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (974) 446 640 Total Number of Pages : 2 (including this page)

Jassim M. Jaidah P.O. Box 150 Dohar Arabian Gulf C R 44 State of Qatar

Investment Vehicle : Jaidah Motors & Trading Company Commitment : US$5,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$2,244.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$25,000. Funding Obligations

Your net funding obligation is US$22,756, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$22,756 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Jaidah Motors & Trading Company Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 965 240 8802 Total Number of Pages : 2 (including this page)

Adnan Al-Sultan Real Estate & Investments Dpt P.O. Box 64 Safat 13001 Kuwait

Investment Vehicle : Kuwait Investment Authority "as Agent for the Government of the State of Kuwait" Commitment : US$10,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$4,528.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$50,000. Funding Obligations

Your net funding obligation is US$45,472, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$45,472 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Kuwait Investment Authority "as Agent for the Government of the State of Kuwait" Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 41 1 241 6356 Total Number of Pages : 2 (including this page)

Mailing Schaeffner Reitergoisse 9-11 P.O. Box 131 Zurich 8027 Switzerland

Investment Vehicle : Libra Limited Commitment : US$5,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$2,264.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$25,000. Funding Obligations

Your net funding obligation is US$22,736, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$22,736 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Libra Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 41 22 317 5572 Total Number of Pages : 2 (including this page)

Jean Letore 16, Quai General Guisan P.O. Box 3496 Geneva - 3 CH-1211 Switzerland

Investment Vehicle : Libra Limited Commitment : US$5,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$2,264.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$25,000. Funding Obligations

Your net funding obligation is US$22,736, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$22,736 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Libra Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 1(561) 338-7145 Total Number of Pages : 2 (including this page)

Felix A. Smolka 701 Sanctuary Drive Boca Raton, FL 33431

Investment Vehicle : Milestone Development Corporation Commitment : US$1,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$438.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$5,000. Funding Obligations

Your net funding obligation is US$4,562, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$4,562 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Milestone Development Corporation Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 41 1 224 3888 Total Number of Pages : 2 (including this page)

Hans Bruderer P.O. Box 4455 Zurich 8022 Switzerland

Investment Vehicle : Mohamed Abdulrahman Al-Bahar Commitment : US$5,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$2,264.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$25,000. Funding Obligations

Your net funding obligation is US$22,736, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$22,736 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Mohamed Abdulrahman Al-Bahar Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 41 22 310 0400 Total Number of Pages : 2 (including this page)

David W. Huyette c/o Unifund S.A. 30, rue du Rhone Geneva 1204 Switzerland

Investment Vehicle : Morley Investments Limited Commitment : US$10,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$4,528.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$50,000. Funding Obligations

Your net funding obligation is US$45,472, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$45,472 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Morley Investments Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 41-22-310-0400 Total Number of Pages : 2 (including this page)

Robert S. Novak 30, rue du Rhone Geneva 1204 SWITZERLAND

Investment Vehicle : Morley Investments Limited Commitment : US$10,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$4,528.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$50,000. Funding Obligations

Your net funding obligation is US$45,472, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$45,472 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Morley Investments Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (41) 22 709 2930 Total Number of Pages : 2 (including this page)

Christophe Lambotte 11, Rue de la Corraterie Geneva CH-1204 Switzerland

Investment Vehicle : Nicolaus R.A. Springer Commitment : US$2,500,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$1,118.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$12,500. Funding Obligations

Your net funding obligation is US$11,382, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$11,382 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Nicolaus R.A. Springer Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 968 70 7519 Total Number of Pages : 2 (including this page)

Deeptak Atal P.O. Box 3886, RUWI Postal Code 112 Sultanate of Oman

Investment Vehicle : Oman International Development & Investment Co. SAOG Commitment : US$2,800,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$1,268.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$14,000. Funding Obligations

Your net funding obligation is US$12,732, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$12,732 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Oman International Development & Investment Co. SAOG Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 44 171 402 6306 Total Number of Pages : 2 (including this page)

N. G. Homsy c/o London Representative Offc 104 Lancaster Gate London W2 3NT United Kingdom

Investment Vehicle : Oryx Merchant Bank Limited Commitment : US$1,500,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$680.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$7,500. Funding Obligations

Your net funding obligation is US$6,820, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$6,820 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Oryx Merchant Bank Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 41 22 320 5634 Total Number of Pages : 2 (including this page)

Paul Jeanbart 28 Boulevard Du Pont D'Arve Geneva 1205 Switzerland

Investment Vehicle : Oryx Merchant Bank Limited Commitment : US$1,500,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$680.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$7,500. Funding Obligations

Your net funding obligation is US$6,820, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$6,820 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Oryx Merchant Bank Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 971231 2931 Total Number of Pages : 2 (including this page)

Abdulla Ismail P.O. Box 2613 Abu Dhabi United Arab Emirates

Investment Vehicle : Pecob Enterprises, Inc. Commitment : US$1,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$453.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$5,000. Funding Obligations

Your net funding obligation is US$4,547, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$4,547 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Pecob Enterprises, Inc. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 44 171 591 0928 Total Number of Pages : 2 (including this page)

Abdulla Ismail 19 Kingston House South Ennismore Gardens London SW71NF ENGLAND

Investment Vehicle : Pecob Enterprises, Inc. Commitment : US$1,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$453.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$5,000. Funding Obligations

Your net funding obligation is US$4,547, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$4,547 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Pecob Enterprises, Inc. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (41) 22 310 44 41 Total Number of Pages : 2 (including this page)

Christian Wagner 12 Cours des Bastions Case Postale 3341 Geneva 3 CH-1211 Switzerland

Investment Vehicle : Pitsilicco LTD., B.V.I. Commitment : US$5,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$2,249.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$25,000. Funding Obligations

Your net funding obligation is US$22,751, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$22,751 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Pitsilicco LTD., B.V.I. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 9662 665 9664 Total Number of Pages : 2 (including this page)

Farid Al-Azem Abdul Aziz Bldg P.O. Box 12679 Palestine Road West Jeddah 21483 Saudi Arabia

Investment Vehicle : PYX Company Limited Commitment : US$1,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$433.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$5,000. Funding Obligations

Your net funding obligation is US$4,567, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$4,567 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: PYX Company Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 44 1 71 499 8949 Total Number of Pages : 2 (including this page)

Nezhet Tayeb c/o Redshare Investments Ltd 29 Curzon Street London W1Y 7AE United Kingdom

Investment Vehicle : PYX Company Limited Commitment : US$1,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$433.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$5,000. Funding Obligations

Your net funding obligation is US$4,567, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$4,567 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: PYX Company Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 44 1481 712 324 Total Number of Pages : 2 (including this page)

Graham Maxi Rue du Pre St. Peter Port Gurensey GY1 1LU Channel Islands

Investment Vehicle : Republic New York International Trust Company Limited Commitment : US$11,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$4,981.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$55,000. Funding Obligations

Your net funding obligation is US$50,019, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$50,019 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Republic New York International Trust Company Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (968) 605 491 Total Number of Pages : 2 (including this page)

A. V. Babu P.O. Box 533 Muscat PC 113 Sultanate of Oman

Investment Vehicle : Sheik Salim Saeed Hamed Al Fannah Hal Araimi & Mr. Mohammed Rashid Abdullah Al Fanna H Al Araimi Commitment : US$1,500,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$1,220.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$7,500. Funding Obligations

Your net funding obligation is US$6,280, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$6,280 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Sheik Salim Saeed Hamed Al Fannah Hal Araimi & Mr. Mohammed Rashid Abdullah Al Fanna H Al Araimi Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (41) 22 310 44 41 Total Number of Pages : 2 (including this page)

Christian Wagner 12 Cours des Bastions Case Postale 3341 Geneva 3 CH-1211 Switzerland

Investment Vehicle : Sherwood Finance LTD. Commitment : US$2,500,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$1,132.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$12,500. Funding Obligations

Your net funding obligation is US$11,367, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$11,367 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Sherwood Finance LTD. Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 41 22 310 59 62 Total Number of Pages : 2 (including this page)

Philippe V. Thevenaz 5, Cours des Bastions Geneva 1205 Switzerland

Investment Vehicle : Sirac Commitment : US$1,500,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$665.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$7,500. Funding Obligations

Your net funding obligation is US$6,835, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$6,835 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Sirac Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 41 22 310 59 62 Total Number of Pages : 2 (including this page)

Soremat S.A. c/o Soremat S.A. B.P. 175 Geneva 12 1211 Switzerland

Investment Vehicle : Sirac Commitment : US$1,500,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$665.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$7,500. Funding Obligations

Your net funding obligation is US$6,835, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$6,835 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Sirac Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 44 171 369 0610 Total Number of Pages : 2 (including this page)

Dina De Angelo One Angel Court London EC2R 7HJ United Kingdom

Investment Vehicle : Stone Corporation Commitment : US$3,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$1,358.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$15,000. Funding Obligations

Your net funding obligation is US$13,642, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$13,642 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Stone Corporation Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 1 212 246 3982 Total Number of Pages : 2 (including this page)

John Verbick 650 Fifth Avenue New York, NY 10111 USA

Investment Vehicle : Stone Corporation Commitment : US$3,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$1,358.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$15,000. Funding Obligations

Your net funding obligation is US$13,642, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$13,642 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Stone Corporation Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 961-1-602718 Total Number of Pages : 2 (including this page)

Sultan Akram Ojjeh P.O. Box 167151 Beirut Lebanon

Investment Vehicle : Sultan Akram Ojjeh Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$881.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,119, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,119 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Sultan Akram Ojjeh Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (0171) 409 7215 Total Number of Pages : 2 (including this page)

Akber Moawalla 19 Berkeley Street London W1X 5AE England

Investment Vehicle : Tinsel Limited Commitment : US$7,500,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$3,396.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$37,500. Funding Obligations

Your net funding obligation is US$34,104, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$34,104 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Tinsel Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 011 41 22 707 6799 Total Number of Pages : 2 (including this page)

David Chamberlain 2, rue de Jargonnant Geneva 1207 Switzerland

Investment Vehicle : Unigestion Holding Commitment : US$7,500,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$3,379.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$37,500. Funding Obligations

Your net funding obligation is US$34,121, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$34,121 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Unigestion Holding Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : 01534-36215 Total Number of Pages : 2 (including this page)

John Hollins P.O. Box 546 / Sir Walter Raleigh House 48-50 The Esplanade St. Helier, Jersey JE4 8XY Channel Islands

Investment Vehicle : Verity Limited Commitment : US$2,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$905.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$10,000. Funding Obligations

Your net funding obligation is US$9,095, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$9,095 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Verity Limited Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (852) 2840 0789 Total Number of Pages : 2 (including this page)

Katherine Tsui c/o 37/F., Wu Chung House 213 Queen's Road East Wanchai HongKong

Investment Vehicle : Wingoal International Corporation Commitment : US$5,000,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$2,264.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$25,000. Funding Obligations

Your net funding obligation is US$22,736, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$22,736 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Wingoal International Corporation Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : (968) 796 921 Total Number of Pages : 2 (including this page)

Hani M. Al-Zubair P.O. Box 1127 Ruwi Muscat 112 Sultanate of Oman

Investment Vehicle : Zent International LTD Commitment : US$500,000

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$226.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$2,500. Funding Obligations

Your net funding obligation is US$2,274, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$2,274 (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Zent International LTD Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner TCG VENTURES LIMITED KIRK HOUSE, P.O. BOX 1100-G, GRAND CAYMAN, B.W.I. TELEPHONE (345) 949-7212 TELEFAX (345) 949-0993 TELEX CP4226

17 June 1997

VIA FAX TO : Total Number of Pages : 2 (including this page)

Investment Vehicle : Commitment : US$

Dear Sir or Madam,

We are pleased to notify you of the second closing of Carlyle Venture Partners, L.P. (the “Partnership”). The Partnership’s initial commitments totaling US$150,153,062 increased by US$10,714,285. The Partnership and its investing affiliates, which comprise the Venture Fund (the “Fund”) have combined commitments at this second closing of US$184,150,000.

Pursuant to Section 7.9 of the Agreement of Limited Partnership dated May 7, 1997 (the “Agreement”), this second closing of the Fund results in a reallocation of the capital contributed by the initial partners. The initial partners will be diluted of their initial allocations of the investment in Neptune Communications, L.L.C. (“Neptune”) and the Partnership’s organizational expenses. Also with this dilution there is a corresponding allocation of interest paid to the initial partners by the newly-admitted partners, as described in Section 7.9(a) of the Agreement. Your dilution amount and corresponding interest from the newly-admitted partners is US$.

Pursuant to Section 5.2(a) of the Agreement, TCG Ventures Limited, as General Partner, is making a capital call for the third quarter management fees. Your allocated portion of the management fees is US$. Funding Obligations

Your net funding obligation is US$, which is your allocated portion of the management fees less your dilution and related interest amount on the second closing of the Fund. Please send US$ (please include any applicable wiring fees in your payment) according to the following wiring instructions no later than July 1, 1997:

Chase Manhattan Bank N.A. New York ABA 021000021 For account Bank Julius Baer & Co. Ltd. New York account number 544 777 037 For onward credit Carlyle Venture Partners L.P.

Ref: Attn: Peter W.C. Goulden

Additional Information

If you have any questions regarding this capital call notice please contact Patty Watson at (202) 626-1277 or Reggie Escalante at (202) 626-1219.

Thank you for the faith you have placed in us and we appreciate your prompt attention in addressing this notice.

Yours faithfully,

TCG Ventures Limited

TCG Ventures Limited General Partner