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SIP-H.323 Interworking Requirements. draft-agrawal-sip-h323-interworking-reqs-02.txt. Hemant Agrawal - GlobeSpan Inc, Radhika R. Roy - AT&T, Vipin Palawat - Cisco, Alan Johnston - MCI WorldCom, Charles Agboh - Ebone, David Wang - Nuera Communications Inc, - PowerPoint PPT Presentation
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SIP-H.323 Interworking Group
RRR-1
IETF-50
SIP-H.323 Interworking Requirements
draft-agrawal-sip-h323-interworking-reqs-02.txt
Hemant Agrawal - GlobeSpan Inc, Radhika R. Roy - AT&T,Vipin Palawat - Cisco,
Alan Johnston - MCI WorldCom, Charles Agboh - Ebone,David Wang - Nuera Communications Inc,
Kundan Singh and Henning Schulzrinne - Columbia University
SIP-H.323 Interworking Group
RRR-2
IETF-50
SIP-H.323 Interworking Requirement Draft Status
• Requirement draft (draft-agrawal-sip-h323-interworking-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
SIP-H.323 Interworking Group
RRR-3
IETF-50
Finalization of SIP-H.323 Interworking Requirement Draft
• The revised draft was submitted in February’01• Last call in mid-March’01• 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
SIP-H.323 Interworking Group
RRR-4
IETF-50
SIP-H.323 Interworking Standard Draft
• Preliminary interowking standard was submitted in February’01
• 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
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