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Next: Conference Control Up: Session Directories, Advertisement and Previous: SIP: In Summary


In this chapter, we have looked at the protocols associated with Sessions in the Mbone. These currently include Session Description and Announcement/Advertisement, as well as Invitation protocols. These can be seen in some senses as analogous with the telephony work on Call Control protocols, although they have some other functional elements, and interact with call routing, multicast address assignment, and possibly even with signaling (e.g. RSVP) more directly than one would typical admit to in ITU protocol designs.