Hi, I am working on Presence management on a SIP client.
I have something working based on SUBSCRIBE / NOTIFY mechanism and Asterisk hints. I know that an other solution could be implemented using peer to peer SUBSCRIBE / PUBLISH mechanism. I would like to understand the advantage and drawback of each solution. My main concern is the case of a complex VOIP environment such as Asterisk server to server connection. As example if we have : [client A] <----------> [Asterisk 1] <-----------> [Asterisk 2] <----------->[client B] Using hints and SUBSCRIBE / NOTIFY would it be possible for client A to be notified of client B presence modification ? If client A can call client B, it would make sense to have SUBSCRIBE / PUBLISH with peer to peer mechanism working. Am I right ? Thanks for your advice, Eloi
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