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Sidebars and Sub-Conferences

Sidebars and Sub-Conferences. Brian Rosen Alan Johnston. Purpose of Document. Discusses in detail signaling dialog/session reuse for sidebars Reuse recommended Detailed sidebar requirements for XCON/SIPPING For inclusion in XCON/SIPPING requirements documents.

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Sidebars and Sub-Conferences

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  1. Sidebars and Sub-Conferences Brian Rosen Alan Johnston draft-rosen-xcon-conf-sidebars-01.txt

  2. Purpose of Document • Discusses in detail signaling dialog/session reuse for sidebars • Reuse recommended • Detailed sidebar requirements for XCON/SIPPING • For inclusion in XCON/SIPPING requirements documents. • Call flows showing how SIP, CPCP, and the Conference Package work together to implement sidebars draft-rosen-xcon-conf-sidebars-01.txt

  3. Sidebar Requirements • Many sidebar requirements are similar to main conference, and are already covered by CPCP and SIP. • Identified missing requirements: • REQ-7 Accept or decline an invitation to a sidebar. • REQ-9 Switch attention back and forth between the sidebar and the main conference. • REQ-11 Leave the sidebar and return to the main conference. draft-rosen-xcon-conf-sidebars-01.txt

  4. Proposal for Missing Requirements • Meet these requirements in CPCP • Already has mechanisms to create, delete, add participants, delete participants • Alternative is a SIP re-INVITE • Some SDP attribute indicating a media stream should be/is currently in a sidebar. draft-rosen-xcon-conf-sidebars-01.txt

  5. Alice Focus Carol Bob | | | | |<==================>| | | | |<==================>| | | |<=======================================>| | | | | | Alice adds Carol to the sidebar using CPCP | | | | | | CPCP Add Carol to sidebar F1 | | |------------------->| | | | CPCP Acknowledgement F2 | | |<-------------------| | | | | | | | Carol is notified that she has been invited to the sidebar with Alice | | | | | | NOTIFY F3 | | | |------------------->| | | | 200 OK F4 | | | |<-------------------| | | | | | | Carol joins the sidebar | | | | | | | | CPCP F5 | | | |<------------------>| | | | | | | Alice is notified that Carol has joined the sidebar | | | | | | NOTIFY F6 | | | |<-------------------| | | | 200 OK F7 | | | |------------------->| | | | | | | | Carol is notified that she is now in the sidebar | | | | | | | NOTIFY F8 | | | |------------------->| | | | 200 OK F9 | | | |<-------------------| | Figure 2. Adding a participant to a sidebar. draft-rosen-xcon-conf-sidebars-01.txt

  6. Alan Johnston alan.johnston@mci.com Brian Rosen br@brianrosen.net Contacts draft-rosen-xcon-conf-sidebars-01.txt

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