From: http://www.packetcable.com/

PacketCable? is a CableLabs?-led project to define a common platform to deliver advanced real-time multimedia services over two-way cable plant. Built on top of the industry?s DOCSIS? 1.1 (Data Over Cable Service Interface Specifications) cable modem infrastructure, PacketCable networks use Internet protocol (IP) technology as the basis for a highly capable multimedia architecture. A DOCSIS 1.1 network with PacketCable extensions enables cable operators to deliver data and voice traffic efficiently and economically using a single high-speed, quality-of-service (QoS)-enabled broadband architecture.

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PacketCable interconnects 3 networks:

• HFC (Hybrid Fiber Coaxial) Access Network
• PSTN (Public Switched Telephone Network)
• TCP/IP Managed IP Networks

PacketCable Protocols

• DOCSIS
• RTP and RTCP required for voice, FAX, and modem traffic
• TGCP an MGCP extension for Media Gateways
• NCS an MGCP extension for analog residential Media Gateways
• COPS the Common Open Policy Service, for controlling access.

PacketCable Articles

• VoIP Services: PacketCableTM Delivers A Comprehensive System (8 page introductory overview)
• Building a PacketCableTM Network: A Comprehensive Design for the Delivery of VoIP Services (10 page introductory overivew)
• CISCO Packetcable Primer
• Whitepaper - Controlling Media Servers with SIP - good overview of how Media servers are used in a PacketCable environment

PacketCable Vendors

• Syndeo - Class 5 softswitches
• Media Gateways
  • Nuera - Media Gateways
• Provisioning
  • ADC - Provisioning Server
  • Interactive Enterprise - Provisioning and Service Activation Software
  • Ceon - Provisioning Servers
  • Dorado Software Provisioning Server
  • Incognito Provisioning Server
  • Intraway Provisioning Suite and Intraway Service Delivery Platform
  • IPfonix - KDC Server
  • Lemur Networks Provisioning and KDC Server
• Media servers
• IVR/Unified Messaging servers (Most require a supporting Media Server)
  • Iperia
  • Ipunity
  • Common Voices
  • LongBoard
  • Openwave
  • BayPackets
  • Pactolus

PacketCable Codecs per PacketCable 1.0 Codec Specification

• Required
  • ITU G.711 (both ?-law and A-law versions)
• Recommended
  • ITU G.728
  • ITU G.729 Annex E
• Optional
  • Any vendor wishes to include

PacketCable and Asterisk

• PacketCable & Asterisk Wiki: Collection of patches and examples for Asterisk in PacketCable environment (this link is dead)
• PacketCable NCS 1.0 patch: Patch for Asterisk included at svn trunk (r227049 http://svn.digium.com/view/asterisk?view=rev&revision=227049 )

The PacketCable Architecture: