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Voip Bof SANOG8 VoIP BoF SANOG8 Syed Khurram & Faisal Chaudhry © 2003, Cisco Systems, Inc. All rights reserved. 1 BoF Agenda • Introduction • History Voice (H.323, MGCP, SIP, Softswitches IMS … ) • SP Architectures © 2003, Cisco Systems, Inc. All rights reserved. 2 Overall Voice Architecture Dial Offload PSTN Gateway Data PGW 2200 Network PSTN PGW 2200 Transit/Tandem AS5X00/UP MGX 8850 AS5X00/UP Cisco BTS IP Local VoCable MGX 8850 Services /VoETTx Network PSTN Call Agent MGX8850 Residential & MG SIP Proxy MG H.323 Business PBX (IMS) Gatekeeper Access IP Phone GK Voice CPE Business & Call Residential Manager © 2003, Cisco Systems, Inc. All rights reserved. Access 3 LDI High Level Architecture PGW 2200 SS7 SIP H.323 MGCP GK IP Network © 2003, Cisco Systems, Inc. All rights reserved. 4 PGW2200 Protocols SSP SSP SLTSLT SLTSLT PGW2200 Gateway MGCP Gateway H.323 SSP SLT SSP SLT SIP SLTSLT Gateway Gateway © 2003, Cisco Systems, Inc. All rights reserved. 5 Customer Snapshot China Unicom – World Largest VoIP Network 1E HRB 1E SY WRMQ CC 12 E LZ HHHT 2E 1E 1E 1E • Services BJ 1E 2E DL YC TJ 2E SJZ 2E XN 1E Calling Card TY 2E JN 1E XA 2E 1E 2E ZZ Tibet 1E 2E 10 E WH Post-paid 1E CD 1E NJ SH CQ 1E 2E 2E 1E AH CX 2E HZ Pre-paid re-chargeable 1E GY 2E 1E 1E 2E FZ LZ 2E 2E KM GZ Pre-paid non re-chargeable XM 8E 12E SZ Single stage dialing: 1E HN National & International Transit • Scalability 350 Cities Directory gatekeeper technology 20,000 E1 Capacity • Extensibility 700M Minutes per Month Foundation for move into residential broadband telephony © 2003, Cisco Systems, Inc. All rights reserved. 6 Telecom Italia: FINANCIAL TIMES Wednesday Telecom Italia takes Europe's biggest step in Voice over IP with Cisco Systems and Italtel (…….) 100% of Telecom Italia's national Rome-Milan voice calls and 50% of its international European voice calls now run over a converged “VoIP/MPLS" network “We chose VoIP because we could save two thirds of our transit operating expenses and give our customers and shareholders a better service. By the end of 2003, we estimate that 80% of Telecom Italia's transit voice traffic will travel over the Cisco Systems and Italtel Multiservice solution. We chose Cisco Systems and Italtel because they had the most reliable solution. Cisco Systems has more experience in IP technology and VoIP than any other infrastructure company and the partnership with Italtel provides additional expertise in the switching carrier environment" said Stefano Pileri, head of Telecom Italia's domestic network © 2003, Cisco Systems, Inc. All rights reserved. 7 Additional Services Business & Residential © 2003, Cisco Systems, Inc. All rights reserved. 8 Managed & Hosted IP Telephony • What is M-IPT & H-IPT Ability to provide “fully managed” Telephony service, and much more, tailored to Business customers by Service Providers • Highly flexible Architecture Call Control: On-premises or Centralized Hosted PSTN Interconnection: Centralized or On- premises ……. © 2003, Cisco Systems, Inc. All rights reserved. 9 Managed & Hosted IP Telephony • What are the requirements for for such a service? Line Side Call Control Interface to Legacy equipment (such as PBX, Voicemail) Dial plan Management Interface to the PSTN/PLMN Billing Customer Premises Equipment e.g. Analog or IP Phones • IP Network © 2003, Cisco Systems, Inc. All rights reserved. 10 Managed & Hosted IP Telephony • What else do you need to cater for? Quality of Service (SLAs) – not just component level, must be end-to-end! Resiliency (Voice products: Remote Site Telephony; IP Network: Dial backup) Security (Enterprise & your network!) IP Addressing © 2003, Cisco Systems, Inc. All rights reserved. 11 Managed & Hosted IP Telephony • Ability to add enhanced (Value Add) services Data Services on IP Phones, International VoIP, VoIP over VPNs (VoVPN), IP Contact Centers, Unified Messaging, Video, …… © 2003, Cisco Systems, Inc. All rights reserved. 12 Managed Hosted IP Telephony configuration SP Hosted SP Hosted Access CPE Sites Infrastructure Service Central Central LDAP Voicemail PGW-2200 IOS Call Manager Cluster Gatekeepers SS7 Signaling GK GK MGCP TDM Voice PIX Firewall AS5XX0 or MGX-8850 w VISM Cat6X00 MTP and Conf. Bridge © 2003, Cisco Systems, Inc. All rights reserved. 13 Managed IP Telephony with ITS configuration SP Hosted Access CPE Sites Infrastructure Voicemail PGW-2200 Gatekeepers (optional) SS7 ITS Signaling GK PSTN GK MGCP PIX Firewall Access TDM Voice Router Voicemail ITS AS5XX0 or MGX-8850 w VISM Cat6X00 (optional) PSTN © 2003, Cisco Systems, Inc. All rights reserved. 14 Cable Telephony Solution – Time Warner Cable • TWC went in Customer PoP Super PoP Cable SubscriberPremises A Cable service in March Subscriber A Modem uBR7246 BTS 2003 Softswitch Other Networks Cable • Supplementary Modem SS7 SS7 A Link Services (CFx, Router Internet CW etc) for Multi- uBR10012 Layer Analog Switch MGX Subscriber B subscribers (MGX) VSM HFC Si DS-3, OC-3, V Plant OC-12 Core IMT PSTN • Service is $39.95 Cable Router Class 4/5 Subscriber C Modem per month and Modem Switch includes AS5x00 unlimited calls in 3660 Cisco MF, FGD US Cable Modem uBR7200VXR 911 AT Voice Mail/ Annc CALEA MF, FGD CableLabs UM Server Server Server OPS qualified Feature Servers Subscriber D http://www.linerunnermaine.com/index.cgi © 2003, Cisco Systems, Inc. All rights reserved. 15 IMS © 2003, Cisco Systems, Inc. All rights reserved. 16 Evolution, not Revolution • Various customers have different network strategies • Tomorrow’s network is IMS • Graceful evolution from existing networks (e.g. PacketCable) to IMS is essential - Leverage existing investment to reduce equipment costs - Subscriber experience - Leverage existing expertise to reduce operating costs • SP Architectures © 2003, Cisco Systems, Inc. All rights reserved. 17 Converged Multimedia IP Communications Services MGX8880 App App App PGW2200 Server Server Server or BTS10200 V PSTN Cisco Name Resolution APPLICATIONS Server (NRS) INTERCONNECT Auth Cisco Call Session Other Control Platform Cisco Subscriber Networks (CSCP) Service Data OAMP Engine BTS Presence & BTS Policy Registration Acct Server Cisco Edge Proxy OSS/BSS SESSION CONTROL CMTS Cisco Cisco CallManager 12000 12000 Cisco 3845 Wireline Cable Wireless Business Broadband Services © 2003, Cisco Systems, Inc. All rights reserved. 18.
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