Hello,

I am trying to setup the ser.cfg to perform failure route.  I have two PSTN gateways and would like to forward the INVITE to gateway 2 if gateway 1 failed. 

My ser.cfg is as follows:

route{

        xlog("L_NOTICE", ">>>>>>>>>>>>>> Proccessing method %rm from %fu <<<<<<<<<<<<<\n");

        if ((method=="REGISTER") || (method=="NOTIFY") || (method=="OPTIONS"))

        {

                xlog ("L_NOTICE", "REGISTER");

                sl_send_reply("200", "ok");

                break;

        }

        rewriteuri("sip:1000@71.137.189.10:21100");

        t_on_failure("1");

        t_relay();

}

failure_route[1] {

        append_branch("sip:1000@71.137.189.10:22100");

        t_on_failure("2");

        t_relay();

}

failure_route[2] {

        append_branch("sip:1000@71.137.189.10:23100");

        t_relay();

}

Gateway 71.137.189.10:21100 returns a 404 NOT FOUND to SER, and I see SER proceed to send the INVITE to 71.137.189.10:22100.  The 2^nd gateway returns 183 (proceed).  I was expecting SER to forward the SDP from 71.137.189.10:22100, however, the SDP actually was the SDP from gateway 1.  How can I get SER to forward the reply from GWY2 and update the SDP information?

Thanks

Cecilia Muaddi