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SIP-H.323 Interworking Requirements

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,

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SIP-H.323 Interworking Requirements

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  1. 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

  2. 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

  3. 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

  4. 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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