24 Jun
2010
24 Jun
'10
6:06 a.m.
2010/6/17 Andrei Pelinescu-Onciul <andrei(a)iptel.org>rg>:
Try 3.0 (kamailio or sip-router). You can control how
unreplied branches
are canceled, see
http://sip-router.org/docbook/sip-router/branch/master/modules/tm/tm.html#c…
A question about case 2:
-----------
2 will send and retransmit CANCEL even on unreplied branches, stopping
the request retransmissions. This has the same advantages as 1 and
also avoids the extra roundtrip in the case of the provisional reply,
but it's not RFC 3261 conforming (the RFC allows sending CANCELs only
on pending branches).
------------
What about if the UAS replies a 200 before the CANCEL arrives to it?
Would TM route the 200 upstream to the UAC? or would TM absorb it?
--
Iñaki Baz Castillo
<ibc(a)aliax.net>