TS 102 393 V1.1.1 (2005-02) Technical Specification
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ETSI TS 102 393 V1.1.1 (2005-02) Technical Specification Corporate telecommunication Networks (CN); Signalling interworking between QSIG and SIP; Call Diversion 2 ETSI TS 102 393 V1.1.1 (2005-02) Reference DTS/ECMA-00296 Keywords interworking, QSIG, signalling ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. 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ETSI 3 ETSI TS 102 393 V1.1.1 (2005-02) Contents Intellectual Property Rights................................................................................................................................5 Foreword.............................................................................................................................................................5 Brief history........................................................................................................................................................5 1 Scope ........................................................................................................................................................6 2 References ................................................................................................................................................6 3 Terms and definitions...............................................................................................................................7 3.1 External definitions ............................................................................................................................................7 3.2 Other definitions.................................................................................................................................................7 3.2.1 Call diversion................................................................................................................................................7 3.2.2 Call forwarding busy (CFB) .........................................................................................................................7 3.2.3 Call forwarding no reply (CFNR).................................................................................................................7 3.2.4 Call forwarding unconditional (CFU)...........................................................................................................7 3.2.5 Corporate telecommunication Network (CN)...............................................................................................7 3.2.6 Entity A.........................................................................................................................................................8 3.2.7 Entity B.........................................................................................................................................................8 3.2.8 Entity C.........................................................................................................................................................8 3.2.9 Gateway ........................................................................................................................................................8 3.2.10 IP network.....................................................................................................................................................8 3.2.11 Leg A............................................................................................................................................................8 3.2.12 Leg B............................................................................................................................................................8 3.2.13 Leg C............................................................................................................................................................8 3.2.14 Private Integrated Services Network (PISN) ................................................................................................8 3.2.15 Private Integrated services Network eXchange (PINX) ...............................................................................8 3.2.16 Rerouting entity ............................................................................................................................................8 3.2.17 User A...........................................................................................................................................................8 3.2.18 User B...........................................................................................................................................................8 3.2.19 User C...........................................................................................................................................................9 4 Abbreviations and acronyms....................................................................................................................9 5 Background and architecture for SIP-QSIG interworking .......................................................................9 6 Call diversion ...........................................................................................................................................9 7 Call diversion in QSIG...........................................................................................................................10 8 Call diversion in SIP ..............................................................................................................................11 9 Diversion interworking...........................................................................................................................12 9.1 Scenarios for diversion interworking ...............................................................................................................12 9.2 Mapping of numbers, names and URIs ............................................................................................................12 9.3 Derivation of QSIG diversion reasons..............................................................................................................13 9.3.1 Scenario A1 ................................................................................................................................................13 9.3.2 Scenario B1.................................................................................................................................................13 9.3.3 Scenario C2.................................................................................................................................................14 9.4 Derivation of SIP response codes (scenarios A2 and C1) ................................................................................14 9.5 Mapping the QSIG diversion counter...............................................................................................................14 9.6 Privacy considerations......................................................................................................................................14 9.7 Interworking for scenario A1 ...........................................................................................................................15 9.7.1 Transmitting a SIP INVITE request ...........................................................................................................15 9.7.2 Receipt of a SIP 1xx or 2xx response .........................................................................................................15 9.7.3 Receipt of a SIP 4xx, 5xx or 6xx response .................................................................................................15 9.8 Interworking for scenario A2 ...........................................................................................................................16 9.8.1 Receipt of a SIP INVITE request................................................................................................................16