app level timers can now be used easily with the AmSession functions:
setTimer(int id, unsigned timeout)
removeTimer(int id)
removeTimers()
timersSupported()
- B2BUA app with SIP Session Timer (SST) now can also use UPDATE
(see session_refresh_method in sst_b2b.conf)
- if re-INVITE is used, normal SDP OA (INVITE+SDP/200+SDP) is done
using last established SDP (instead of delayed SDP negotiation
and SDP ping-pong)
- SDP is compared only after o= line (no SDP ping-pong with UAs which
always increase SDP version)
The incoming INVITE establishind a call is passed in
signaling only B2B mode to the B leg, which tries to
send it to the request URI.
SIP Session Timers are enabled on both legs. When the
timer expires, an empty INVITE is sent, and the resulting
SDP offer from body of the 200 is relayed into the other
leg, where it is sent out as INVITE with the offer. The
answer from B leg is relayed into A leg and sent as body
in ACK message.
SST expiration is configurable in confi file.
git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@1821 8eb893ce-cfd4-0310-b710-fb5ebe64c474
Stefan Sayer
Raphael Coeffic
bpintea