IETF-54draft-ietf-sipping-service-examples-02.txt1 Open Issues in SIP Service Examples Recent...
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IETF-54 draft-ietf-sipping-service-exam ples-02.txt 1 Open Issues in SIP Service Examples Recent Changes • Added 2-party to 3-party conversion – Uses a URI to identify the conference and SIP Events – Scenarios • User is added by participant • User requests admission (joins)
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Transcript of IETF-54draft-ietf-sipping-service-examples-02.txt1 Open Issues in SIP Service Examples Recent...
IETF-54 draft-ietf-sipping-service-examples-02.txt 1
Open Issues in SIP Service Examples
Recent Changes
• Added 2-party to 3-party conversion– Uses a URI to identify the conference and SIP
Events– Scenarios
• User is added by participant
• User requests admission (joins)
IETF-54 draft-ietf-sipping-service-examples-02.txt 2
Open Issues• 2-Party to 3-Party transition
– subscription/interaction between UA and bridge – use of Join/Fork?– discovery of conference URI
• Single Line Extension– needs more attention
• To Do:– align with latest REFER changes– include Conference Package in flow
• Contact:– [email protected]
IETF-54 draft-ietf-sipping-service-examples-02.txt 3
2.9 3-way Conference – Third Party is Added User A User B Bridge User C | RTP | | | |<==============>| | | |INVITE (hold)/200/ACK | | |<---------------| | | | No RTP | INVITE/200/ACK | | |------------->| | | | RTP | | | |<============>| | | REFER Refer-To:Bridge/202 | | |<---------------| | | | INVITE/200/ACK | | |------------------------------>| | | RTP | | |<=============================>| | | NOTIFY/200 | | | |--------------->| | | | BYE/200 | | | |<---------------| | | | | REFER Refer-To:C/202 | | |------------->| | | | | INVITE/180/200/ACK | | |------------->| | | | RTP | | | NOTIFY/200 |<============>| | |<-------------| |
IETF-54 draft-ietf-sipping-service-examples-02.txt 4
2.10 3-way Conference – Third Party Joins User A User B Bridge User C | | | | | RTP | | INVITE | |<==============>| |<-------------| | | | 180 | | | NOTIFY/200 |------------->| | |<-------------| | |INVITE (hold)/200/ACK | | |<---------------| | | | No RTP | INVITE/200/ACK | | |------------->| | | | RTP | | | |<============>| 200 OK | | | |------------->| | | | ACK | | | |<-------------| | | | RTP | | | NOTIFY/200 |<============>| | |<-------------| | | REFER Refer-To:Bridge/202 | | |<---------------| | | | INVITE/200/ACK | | |------------------------------>| | | RTP | | |<=============================>| | | NOTIFY/200 | | | |--------------->| | | | BYE/200 | | | |<---------------| | |
