Hello,
Still using Kamailio 1.5.4.
What behaviour should the tm module be doing? Is it doing the RFC
behaviour where the CANCEL is only sent after a provisional reply is
received or is it doing some other non standard action ?
David
On 2010-06-17 16:59, Andrei Pelinescu-Onciul wrote:
On Jun 17, 2010 at 16:39, David<kamailio....@spam.lublink.net> wrote:
Hello,
I had a look at RFC 3261, section 9.1. The trouble is that Kamailio
is answering "100 Trying" to the caller, so the it is ok for the
caller to send back a CANCEL request. Trouble is Kamailio forwards
the request to the called user even though the called user never
sent a provisional response.
Since the Kamailio server never received a provisional request, it
is therefore incorrect for it to forward the CANCEL request to the
called user. ( correct me if I am wrong ).
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#cancel_b_method
Andrei
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