[OpenSIPS-Users] OpenSIPS and SIP source routing

[Labus]

Little less...

In my issue I have some organizations in OCS (each organization have self
sip domain and self PSTN GW).

All calls from OCS go to OpenSIPS (through OCS Mediation). I don't use TEL
URI instead SIP URI, so OpenSIPS receive something like this:
user1 at domain1.loc, user2 at domain1.loc, user3 at domain1.loc and all these users
I need routed to Asterisk1 (PSTN-GW1), but if OpenSIPS receive
userA at domain35.loc (other sip domain) I need routed this call to other
Asterisk35 (PSTN-GW35).

route{
    if (!mf_process_maxfwd_header("10")) {
        sl_send_reply("483","Too Many Hops");
        exit;
    };
    if (msg:len >=  2048 ) {
        sl_send_reply("513", "Message too big");
        exit;
    };
    if (loose_route())
    {
        append_hf("P-hint: rr-enforced\r\n");
        route(1);
    };
    if (is_method("PUBLISH|SUBSCRIBE|NOTIFY|REGISTER"))
    {
        sl_send_reply("501", "Method $rm not implemented");
        exit;
    };

    if (src_ip==X.X.X.X)   ######## FROM OCS SERVER
    {
        xlog("Request from OCS \n");
        remove_hf("Contact");
        append_hf("P-hint: outbound\r\n");
        if($rm=="INVITE" && uri=="user1 at domain1.loc")
        {
                sethostport("A.A.A.A:5060");   #######  PSTN-GW1 
                xlog("*******************************");
                xlog("DOMAIN1 outbound call from OCS.\n");
                xlog("From uri=[$fu]\n");
                xlog("Request's method=[$rm]\n");
                xlog("Request's uri=[$ru]\n");
                xlog("To uri=[$tu]\n");
                xlog("*******************************");
                if (!t_relay("udp:A.A.A.A:5060"))
                {
                    sl_reply_error();
                };
                exit;
       }
       else  if($rm=="INVITE" && uri=="user1 at domain35.loc")
       {
                sethostport("B.B.B.B:5060");   #######  PSTN-GW35
                xlog("*******************************");
                xlog("DOMAIN35 outbound call from OCS.\n");
                xlog("From uri=[$fu]\n");
                xlog("Request's method=[$rm]\n");
                xlog("Request's uri=[$ru]\n");
                xlog("To uri=[$tu]\n");
                xlog("*******************************");
                if (!t_relay("udp:B.B.B.B:5060"))
                {
                    sl_reply_error();
                };
                exit;
       };
    }
    else    # When incoming call from PSTN-GW NN route this to OCS throught
route1
    {
    route(1);
    };
}


route[1] {
    # When incoming call from PSTN-GW NN route this to OCS
    sethostport("X.X.X.X:5060");
    if (!t_relay("tcp:X.X.X.X:5060")) {
        sl_reply_error();
    };
    exit;
}

onreply_route {
        xlog("---------REPLY-------------");
        xlog("Reply route");
        xlog("From uri=[$fu]\n");
        xlog("Request's method=[$rm]\n");
        xlog("Request's uri=[$ru]\n");
        xlog("To uri=[$tu]\n");
        xlog("IP source=[$src_ip]\n");
        xlog("---------------------------");
exit;
}

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