[SR-Users] Dialog: Keep-alive issue:

Kelvin Chua kelchy at gmail.com
Mon Apr 7 21:02:06 CEST 2014

try this

modparam("dialog", "ka_timer", 3)
modparam("dialog", "ka_interval", 10)

these 2 will make sure it will disconnect within 30 seconds


thesse 2 will make sure that keep alive timers will apply to the current

Kelvin Chua

On Mon, Apr 7, 2014 at 1:43 AM, Vassilis Radis <radisb at gmail.com> wrote:

> Hello,
> I am trying to use the dialog module for dealing with some cases where
> clients do not send BYE messages correctly and just disappear. For this
> reason i use the ka_timer and ka_interval along with ka-dst and ka-src
> attributes. I am using the master branch. I have setup the following test:
> I have setup a sipp instance as a callee uas configured to discard OPTIONS
> messages. Kamailio serves as a proxy between this sipp instance and a VoIP
> device registered to kamailio. Kamailio is also configured to send every
> call to the sipp uas with stateful proxing and dialog support:
> CALLER ------> KAMAILIO ----->  CALLEE (sipp / ignores OPTIONS msg)
> I have the following issue:
> 1. Dialog does send the OPTIONS messages to caller and callee, and as
> expected, only the caller responds (with a 200 OK response). But the dialog
> module never terminates the dialog as it should (because the callee never
> responds to the OPTIONS msg). Instead it keeps sending those OPTIONS for
> ever. It is like there is no timer entry in the timer list for those
> OPTIONS. I looked a bit in the source code and I am trying to find where a
> timeout for those keep alives is a)set and b)handled . I see that the
> dlg_timer_routine is called every second but after turning debugging on, i
> see that the only timer reported is the default timeout for the call which
> i ve set to 3600 secs in the module parameters.
> Any insight or advice?
> Thanks a lot.
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