Re: [SR-Users] CANCEL is not processed in onsend_route

I have no idea how siptrace works, but: When using tm module, the CANCEL is not forwarded but absorbed by tm module, and then tm module creates a new CANCEL based on the previous sent INVITE.

That may be the reason why on_send route is not activated.

klaus

Am 06.09.2011 10:24, schrieb Timo Klecker:

Hello all,

I want to log the incoming and outgoing CANCEL on my Kamailio. I tried with a call of sip_trace in the default route

setflag(22);

if (method == “CANCEL”) {

            sip_trace();

            if (t_check_trans()) {

                           t_relay();

                           exit;

            }

}

This works great, I get the incoming CANCEL in the Database. But the outgoing CANCEL is not logged with flag set. So I tried to use onsend_route with the following lines:

onsend_route {

            xlog(“L_NOTICE”, “ SENDING  from $si \n $mb \n “);

            if ( method == “CANCEL” )

                           sip_trace();

}

I am using Kamailio Version 3.1.0 (with Patch for Siptrace in onsend_route by Daniel ).

But the CANCEL is not processed in the onsend_route at all. I do not even see the xlog-line. But tcpdump gives me the CANCEL outgoing.

Following callflow:

INVITE >

100 <

                           > INVITE

                           < 100

                           < 180

180 <

CANCEL>

                            > *CANCEL*

I am missing the last CANCEL.

Why is the CANCEL not logged with flag 22 set?

Why is the CANCEL not processed in the onsend_route?

Greetings

Timo

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