SIP actors

SIP actors

SIP Actors (presence entity names in blue)

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Transcript

[slide121] And we're going to have these bunch of actors. We have a SIP caller and we have a SIP callee, the called party. And when the caller wants to make a call, what are they going to do? They're going to send out an INVITE. The INVITE is going to go to some probably local proxy, which goes to some network proxy, which then may fork out sending the invite to several other places. And eventually, it reaches a place where, yes, the callee receives the INVITE. We also have a Watcher and a so-called Presentity. And these are important for the SIP SIMPLE purposes, or SIMPLE purposes. We'll come back to those later.