1 / 11

Peering & Routing Designs Using Session Controllers & Media Gateways

This agenda from the Voice Peering Forum outlines the evolution of voice networks from TDM to all-IP systems. Key topics include roles and relationships in network design, case studies demonstrating practical applications, and an overview of Cantata Technology's integrated media gateway (IMG 1010). The document emphasizes the importance of peering models, signaling protocols, and diverse routing solutions to facilitate seamless communication between traditional and modern IP networks. This presentation serves as a vital resource for enterprises and service providers navigating voice network transitions.

jag
Download Presentation

Peering & Routing Designs Using Session Controllers & Media Gateways

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. James Rafferty Voice Peering Forum March 8, 2007 Peering & Routing Designs Using Session Controllers & Media Gateways

  2. Agenda • Cantata Overview • Topic Overview • Roles and Relationships • TDM to IP network • All IP networks • Applications and Case Studies • Summary

  3. Leading provider of enabling technology for the enterprise and service provider markets. Formed by the combination of Excel Switching and Brooktrout Technology Founded in 1984 300+ employees worldwide Global company Headquarters in Needham, Massachusetts Principal offices in MA, NH, CA, Belgium, and Japan Distribution: Enterprise: distributor and reseller network, direct OEM Service Providers: regional distributors, direct OEM sales Unique partner philosophy About Cantata Technology

  4. Overview – Evolving Voice Network • Voice network evolution Trends • PSTN  Hybrid  IP • IP network islands  Federations of IP • Creates need to connect all of the various network possibilities • Traditional – connect via Tier 1 carrier • Peering Model – connect directly between co-located carriers

  5. Complicating Factors • Signaling • Multiple Signaling protocols • IP – SIP, H.323, H.248 • TDM – SS7 ISUP, ISDN PRI, CAS • Media • Various voice codecs • Need support for fax, data and tones • Business • Carriers need to agree to work together, then they can solve the technical matters

  6. Stepping Into the Breach • Solving the signaling problem • Integrated media / signaling gateways can interwork between the PSTN and IP networks • SBCs sometimes used for mediation of signaling between IP networks • Solving the media problem • Media gateways can transcode between different media formats (voice, fax, tones) • Solving the Routing problem • Calls can be routed either by SBC or MGW routing engine • May want to use ENUM for PSTN -> SIP address translation • Connecting the Islands • VoIP Carriers can connect either directly or via a peering fabric • Direct IP connection is possible, but SBCs typically patrol the borders

  7. Cantata’s Integrated Media Gateway IMG 1010 • Provides Essential Media Support • Broad range of VoIP/wireless codecs and T.38 IP fax • Any to Any signaling • SS7 ISUP, ISDN, CAS*, SIP and H.323 • Address Translation • Use ENUM for E.164 phone number -> SIP * • Available in both TDM-IP gateway and IP-IP models • Compact 1U footprint, scalable from 96 to 768 ports • DS3, T1 and E1 interfaces all available • Backed by a world class Cantata support team * Available Q1, 2007

  8. Making the Connection: TDM -> IP SIP / H . 323 SS 7 + TDM IP Carrier TDM Carrier ISDN / CAS IMG 1010 Media Gateway Call 1 – TDM - TDM Call 2 – TDM - IP Media Gateway Functions: PSTN-to-IP Connection >Media >Signaling >Routing

  9. Making the Connection: TDM/IP to IP Session Border Controller SIP / H.323 SIP SS 7 + TDM IP Carrier 1 TDM Carrier ISDN / CAS SIP / H.323 IMG 1010 Media Gateway Call 1 – TDM - TDM Call 2 – TDM – IP – Carrier 1 IP Carrier 2 Media Gateway Functions: PSTN-to-IP Connection >Media >Signaling >Routing SBC Functions: IP-to-IP connection >Firewall and NAT traversal >Policy enforcement >Security >Signaling Interwork (SIP, H.323) Call 3 – IP – IP – Carrier 1 -> 2

  10. TDM/IP to IP with Peering Call 1 – IP – IP (transcode iLBC -> G.729) Session Border Controller SIP SIP / H.323 SS 7 + TDM SIP IP Carrier 1 TDM Carrier SIP / H.323 ISDN / CAS RTP IMG 1010 Media Gateway Media Gateway Functions: PSTN-to-IP Connection >Media >Signaling >Routing IP to IP Connection >Transcoding > ENUM address translation SIP IP Carrier 2 SBC Functions: IP-to-IP connection >Firewall and NAT traversal >Policy enforcement >Security >Signaling Interwork (SIP, H.323) Peering Fabric offers simpler connections among carriers

  11. Summary • Transition from TDM to IP networks underway • Carriers need to connect between diverse networks • Cantata’s IMG 1010 provides TDM – IP signaling, address and media translation • Also transcoding for all-IP networks • Cantata partners with SBC vendors to meet overall carrier needs • IMG can be coupled with SBCs and Peering Fabrics to support a wide variety of connections and call flows

More Related