if you are talking to a device that pretends to do session timers but really does not, the re-invite can cause a hangup. We have seen this with sonus many times, do you have sonus involved in your call per chance? On Wed, Aug 26, 2009 at 7:59 AM, Dennis <odermann@googlemail.com> wrote:
You have a NAT issue.
as i wrote, we are quite sure, that this is a nat problem. but we have no idea how we could fix this. there must be a reason, why the hangup always comes after 120 seconds.
<!--RTP port range --> <param name="rtp-start-port" value="10000"/> <param name="rtp-end-port" value="32767"/>
we tested that, but this does not change anything (nothing becomes worse or better).
param name="session-timeout" value="120"
this line is commented in our profile and we believe, that this has nothing to do with our problem.
to tell a little bit more about our problem:
under http://wiki.freeswitch.org/wiki/General_NAT_example_scenarios#Scenario_2 you can find the scenario, which is exactly like ours. we played with all the mentioned settings, but it does not work.
to mention one thing: if we connect with xlite (softphone), we do not have any problems. but we have snom-voip-phones and with them we have the problems.
the big question is: wo or what might cause/trigger the hangup? is it freeswitch or something else? we have a firewall (IPCop) - might there be a setting, which needs to be set, to avoid theses problems?
kind regards dennis
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