Hello, On 9 Nov 2012, at 16:12, Alex Solt <alex_s...@hotmail.com> wrote:
> Hi, > > To be accurate the next hop after kamailio is a session border controller and > not an end-point. And the SBC is the one which get confused with the ACT > received from kamailio. > Is sys_branch=0 shoudl be used within WITHINDLG block? No, syn_branch is a global parameter, add it somewhere at the top of your config file. Cheers, Daniel > > > Thanks, > AS > > Date: Fri, 9 Nov 2012 14:56:22 +0100 > From: mico...@gmail.com > To: sr-users@lists.sip-router.org > CC: alex_s...@hotmail.com > Subject: Re: [SR-Users] "branch" tag in the "Via" header of the ACK message > for the re-INVITE > > Hello, > > try with global parameter: > > syn_branch=0 > > An end-to-end ACK is a separate transaction, as it can go directly from > caller to callee or skip some hops from the INVITE path (if no record routing > is used). So branch in Via should not be used to match the dialog, but > call-id, from-tag and to-tag. It would be also good ask the vendor to support > properly sip rfc, other sip UAs may not have this configuration option. > > Cheers, > Daniel > > On 11/9/12 2:49 PM, Alex Solt wrote: > Hi, > > > We have a problem with the "branch" tag in the "Via" header of the ACK > message for the re-INVITE. The "branch" tag value is not a unique number so > the end point thinks the ACK is belong to the previous call. This causes the > active calls fail after 15 min (right after the ACK message for re-INVITE > passed by kamailio proxy). > > Is there a way to set the "branch" tag in the "Via" header of the ACK message > for the re-INVITE to be a unique number? > > > PS1: We are running kamailio v3.3. > > PS2: we did not have this issue with the old version of openser. > > Thanks, > > AS > > > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > -- > Daniel-Constantin Mierla - http://www.asipto.com > http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda > Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat > Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - > http://asipto.com/u/katu
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