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Peering with IP PBXs James Rafferty VoIP Peering Workshop Internet Telephony January 25, 2007

Peering with IP PBXs James Rafferty VoIP Peering Workshop Internet Telephony January 25, 2007. Agenda. Overview Extending the Reach of VoIP Application Examples Standards and Other Resources Summary. Overview. VoIP Peering is gaining popularity as a simpler means of connecting VoIP Calls

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Peering with IP PBXs James Rafferty VoIP Peering Workshop Internet Telephony January 25, 2007

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  1. Peering with IP PBXsJames RaffertyVoIP Peering WorkshopInternet TelephonyJanuary 25, 2007

  2. Agenda • Overview • Extending the Reach of VoIP • Application Examples • Standards and Other Resources • Summary

  3. Overview • VoIP Peering is gaining popularity as a simpler means of connecting VoIP Calls • VoIP Peering enables carriers and enterprises to connect more directly for IP Communications • Examples to follow

  4. Extending the Reach of VoIP • Traditionally there was always a connection to the Public Switched Telephone Network • SIP Trunking enables enterprises to bypass the PSTN and connect their people via IP • Combo of SIP Trunking plus VoIP Peering extends the reach of VoIP • Enables enterprises to bypass both the PSTN and the Internet • Other IP tools such as ENUM can reduce toll charges related to the PSTN

  5. SIP Trunking IP Fax Server IP Phone IP PBX • Connect to Internet via SIP • IMG translates between H.323 • and SIP • Support for VoIP & FoIP calls H.323 IMG 1010 Media Gateway SIP IP Network SR140 IP Fax IP Phone SIP Trunking for VoIP/FoIP

  6. SIP Trunking + VoIP Peering IP Fax Server IP Phone IP PBX • Connect to Peering Fabric via SIP • IMG translates between H.323 • and SIP • Support for VoIP & FoIP calls • Gain IP benefits without Internet • security risks H.323 IMG 1010 Media Gateway SIP Peering Fabric SR140 IP Fax IP Phone SIP Trunking for VoIP/FoIP

  7. VoIP Transcoding Services IP Phone IP Phone IP PBX • Connect to VPF with G.711 voice • Service from Waveleap provides • transcoding of G.711 to G.729 • Able to connect to remote office • with compressed G.729 SIP + G.711 Xvon.net transcoding From Waveleap SIP + G.711 VPF™ SIP + G.729 IMG 1010 Media Gateway IP Phone IP Phone SIP Trunking to Remote Office

  8. ENUM Services IP Phone IP Phone IP PBX DNS Server • Connect to Peering Fabric • Lookup SIP address via ENUM • service • Translate +15088629500 to SIP • URI • Connect to remote office via SIP, • saving phone chgs vs. PSTN SIP + G.711 ENUM Inquiry SIP w <+15088629500> Peering Fabric SIP w SIP URI IMG 1010 Media Gateway IP Phone IP Phone SIP Trunking to Remote Office

  9. Standards and Other Resources • SIP Forum has developed specifications for SIP Trunking • See the recommendations tab under www.sipforum.org • Internet Engineering Task Force has an active group on VoIP Peering known as SPEERMINT • Addresses technical issues related to VoIP Peering • See: http://www.ietf.org/html.charters/speermint-charter.html

  10. Summary • VoIP Peering extends the reach of enterprises • Combination of VoIP Peering and SIP Trunking enables more cost effective communication • Peering Service Providers can offer services which include transcoding and ENUM • Cantata and its partners offer technology and services that help enable VoIP Peering

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