New subject: Route Between WebSockets without rtpengine getting into the mix

3 Mar 2015

Hello All,

Prior to going down the rtpengine path for another need, calling was
working fine between WSS client.  Now that I've added in some pieces from
caruizdiaz's config [
https://github.com/caruizdiaz/kamailio-ws/blob/master/kamailio-ws.cfg]
relating to SETUP_BY_TRANSPORT, it has broken that functionality.

Is there a way to skip rtpengine if the originator and destination are both
on wss?

route[RELAY] {

        # enable additional event routes for forwarded requests
        # - serial forking, RTP relaying handling, a.s.o.
        if (is_method("INVITE|BYE|SUBSCRIBE|UPDATE")) {
                t_on_branch("MANAGE_BRANCH");
                t_on_reply("MANAGE_REPLY");
        }
        if (is_method("INVITE")) {
                route(SETUP_BY_TRANSPORT);
                if(!t_is_set("failure_route"))
t_on_failure("MANAGE_FAILURE");
        }
        if (!t_relay()) {
                sl_reply_error();
        }
        exit;
}

route[SETUP_BY_TRANSPORT] {

        if ($ru =~ "transport=ws") {
                xlog("L_INFO", "Request going to WS");
                if(sdp_with_transport("RTP/SAVPF")) {
                        rtpengine_manage("rtcp-mux-demux trust-address
replace-origin replace-session-connection ICE=force DTLS=passive");
                        t_on_reply("REPLY_WS_TO_WS");
                        return;
                }

                #rtpengine_manage("rtcp-mux-demux trust-address
replace-origin replace-session-connection ICE=force DTLS=passive RTP/SAVP");
                t_on_reply("REPLY_FROM_WS");
        }
        else if ($proto =~ "ws") {
                xlog("L_INFO", "Request coming from WS");
                rtpengine_manage("rtcp-mux-demux trust-address
replace-origin replace-session-connection ICE=remove DTLS=passive
RTP/SAVP");
                t_on_reply("REPLY_TO_WS");
        }
        else {
                xlog("L_INFO", "This is a classic phone call");
                rtpengine_manage("replace-origin
replace-session-connection");
                t_on_reply("MANAGE_CLASSIC_REPLY");
        }
}

Thanks for any help!
-Don