[Users] Ack is Losting .........

[raviprakash sunkara]

Hi Users...

The UAC's  behind the  NAT is hung up the softphones.. Automatically...

I think Ack is Losting .. So the Session is Looses..


here ...... in this    :---->   nat_uac_test(paramter)

                                               what parameters should placed
here....  3 or 10  or 1

                                              Same fo fix_naed_sdp()..


--------------------------- opense,cfg....

route {


route(2);
if(!method=='ReGISTER') {
record_route();
};
if(uri==myself)
{
.....
......
....

}
route(1);
}

route[1] {
        log("Testing------->  route[1] \n");
        if (subst_uri('/(sip:.*);nat=yes/\1/')){
                setflag(6);
        };

        if (isflagset(5)||isflagset(6)) {
                route(3);
        }

        if (!t_relay()) {
                sl_reply_error();
        };
        exit;
}

route[2]{
        log("Testing------->  route[2] \n");
#       force_rport();
        if (nat_uac_test("19")) {
                log("Testing------->  nat_uac-test_19\n");
                if (method=="REGISTER") {
                        log("Testing-------> nat _ reg \n");
                        fix_nated_contact();
                } else if (method=="INVITE")  {
                        log("Testing-------> nat_cantact \n");
                        fix_nated_sdp("1");
#                       fix_nated_contact();
                };
                force_rport();
                setflag(5);
        };
}

route[3] {
        log("Testing------->  route 3 \n");
        if (is_method("BYE|CANCEL")) {
                log("Testing------->  Bye\n");
                acc_db_request("Stop","acc");
                unforce_rtp_proxy();
  } else if (is_method("INVITE")){
        log("Testing-------> Invite in route [3\n");
#       fix_nated_sdp("3");
        acc_db_request("Start","acc");
                force_rtp_proxy();
                t_on_failure("1");
        } else if(is_method("ACK"))  {
        log("Testing-------------------> ACK\n");
        force_rtp_proxy();
        };
        if (isflagset(5))
{
#               fix_nated_sdp("3");
                search_append('Contact:.*sip:[^>[:cntrl:]]*', ';nat=yes');
};
        t_on_reply("1");
}

failure_route[1] {
        if (isflagset(6) || isflagset(5)) {
                acc_db_request("Stop","acc");
                unforce_rtp_proxy();
        }
}

onreply_route[1] {
        log("Testing------->  t_on_reply\n");
        if ((isflagset(5) || isflagset(6)) && status=~"(183)|(2[0-9][0-9])"
&& (!search("^Content-Length:\ 0"))) {
        log("Testing ---> 183 200 \n");
        force_rtp_proxy();
        }
        search_append('Contact:.*sip:[^>[:cntrl:]]*', ';nat=yes');

#       if (isflagset(6)) {
##      fix_nated_sdp("1");
#               fix_nated_contact();
#       }
        exit;
}


-- 
Thanks and Regards with cheers
Sunkara Ravi Prakash (Voip Developer)
Hyperion Technology
www.hyperion-tech.com
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