VoIP Peering Architectures

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  • 1. VoIP Peering Architecture and Strategies The Voice Peering Forum 5 December 2007 [email_address]
  • 2. Architecture & Strategies
    • Inter-Exchange Carrier Model
    • Simple Federation & Registry
    • Advanced Federation & Registry
    • GSMA IPX
  • 3. Inter-Exchange Carrier Model
    • Benefits
    • Simple operation – one connection provides access to many networks
    • Transcoding
    • One bill
    • Limitations
    • Higher prices
    • SBC bottleneck can limit services
    Session Border Controller Peering Service Provider Peer 1 Peer 2 Peer 3 Peer 4 Peer 5 Peer 6 CDRs CDRs CDRs CDRs CDRs CDRs CDRs
  • 4. Simple Federation & Registry
    • Benefits
    • Single route lookup provides access to many networks
    • Peer to Peer transmission
    • Limitations
    • Many bilateral billing contracts
    • Security and access control
    Peering Service Provider Peer 1 Peer 6 CDRs CDRs CDRs CDRs CDRs ENUM Directory Peer 2 Peer 3 Peer 4 Peer 5 CDRs
  • 5. Advanced Federation & Registry
    • Benefits
    • Single route lookup provides access to many networks
    • Peer to Peer transmission
    • Multi-lateral Clearing & Settlement
    • Limitations
    • Security and access control
    Peer 1 Peer 6 CDRs CDRs CDRs CDRs CDRs Peer 2 Peer 3 Peer 4 Peer 5 CDRs Multi-lateral Clearinghouse CDRs CDRs CDRs CDRs CDRs CDRs
  • 6. GSMA - IPX
    • GSMA – 700+ operators, 2 Billion subscribers
    • IPX is an IP extension of the GRX- Global Roaming Exchange
  • 7. GSM-A IPX
    • Benefits: GSMA – IPX Does everything.
    • Limitation: Is it possible?
    Security Cascading Payments Connectivity QoS Signaling MMS GRX IM E-Mail Content High QoS Content Video IPTV IPTV
  • 8. Experiences To Date
    • Public ENUM concept is dead.
    • Peering Service Providers that are Inter-Exchange Carriers are perceived as IXCs.
      • Arbinet, Intelepeer (VoEX), XConnect
    • Adoption of Peering Federation Solutions offered by Telecom Infrastructure providers has been slow.
      • Neustar, Verisign
    • The Market is still searching for the right VoIP peering model.
  • 9. Future Trends to Watch
    • Industry Cooperatives
      • GSM Association
      • CDMA carriers
      • The VPF
    • Regulation
      • UK specifications for VoIP interconnect
    • Consolidation
      • Seems unlikely in the near term
    • Independent Alternative
      • Open source software could be a factor
      • Non-Telecom players could be a factor