On Jul 20, 2005, at 7:10 PM, Alexander Krassiev wrote:
Hello,
Having implemented session timers in one b2bua, and currently facing
same requirement with another b2bua, we are asking ourselves the
question "why?". We needed only to release stale sessions. Why then had
we bothered with assymetric 3pcc-style re-INVITES sent out by b2bua
instead of plain "OPTIONS", considering rfc3261 compliance of end
points?
Examine the Allow headers coming from the UAs. If they contain the
UPDATE method, use it to refresh the session. I believe a session
refresh request needs to be a dialog refresh request as well, so
OPTIONS cannot be used.
Thanks,
Hisham
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