[asterisk-users] Presence Management - use of hint

[Eloi Bail]

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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