SIP-H.323 Interworking Requirements

1
SIP-H.323 Interworking Requirements
draft-agrawal-sip-h323-interworking-reqs-02.txt
Hemant Agrawal - GlobeSpan Inc, Radhika R. Roy -
ATT, Vipin Palawat - Cisco, Alan Johnston - MCI
WorldCom, Charles Agboh - Ebone, David Wang -
Nuera Communications Inc, Kundan Singh and
Henning Schulzrinne - Columbia University
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SIP-H.323 Interworking Requirement Draft Status

• Requirement draft (draft-agrawal-sip-h323-interwor
  king-reqs-02.txt) updated based on comments
• Added SIP- and H.323-side definition
• Clarified that conversion of one media format to
  another is out-of-scope
• Added registration of IWF with H.323 GK
• Clarified that TRIP may be used to register the
  SIP-side of the IWF
• Added clarifications for overlap sending and
  mid-call digit transfer
• Clarified that call flows will include both fast
  start and without fast start
• Clarified definition of media to include fax
• Added support for out-of-band dtmf signaling
• Added T.38 fax interworking requirement

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Finalization of SIP-H.323 Interworking
Requirement Draft

• The revised draft was submitted in February01
• Last call in mid-March01
• Informational RFC number to be sought after the
  last call
• Requirement draft presented in both IETF and
  ITU-T
• Comments received incorporated in the draft
• The informational RFC will be submitted to the
  ITU-T SG16 for an informational Annex in H.323

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SIP-H.323 Interworking Standard Draft

• Preliminary interowking standard was submitted in
  February01
• Discussion is going in the SIP/eGroup and SG16
  email exploder
• Some example issues
• State machine
• UDP packet-size limitations for registration of
  the large number of SIP endpoints by the IWF in
  H.323 GK
• Sending of SDP for the SIP-H.323 call setup ACK
  vs. INVITE
• Others
• Next phase
• SIP-H.323 T.38 fax interworking to be included as
  part of the IWF that includes H.323v4
  interworking with SIP
• SIP will be in the "supportedProtocol" field of
  H.323v5 RAS messages