You will want to read this http://tools.ietf.org/html/rfc4028
I am guessing you are no relation to Jonathan Rosenberg otherwise you would just ask him directly?? :)
If I was you I would reproduce the issue and do a sip trace of the whole call and see whats going on.
On , Schneur Rosenberg <[email protected]> wrote:
I never really understood how the session expires works and whats the
difference between UAC or UAS, who is supposed to send the reinvite?
etc, if anyone can provide me with a simple explanation I would really
appreciate.
I'm getting a call from a DID which has Expires: 240. Min-SE: 1200 in
the sip headers. the call gets disconnected at exactly 30 minutes,
because I'm not sure how the Expires works I don't know what do, is
opensips responsible to send the reinvite or the phone? if opensips is
supposed to initiate the INVITE what module and functions do I need to
use.
thanks in advance
S. Rosenebrg
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