[OpenSIPS-Users] Opensips + rtpproxy + SBC

[Trevor Steyn]

Normally if you are in bridge mode you will use the "ie" flags which i
dont see please can you post how you start rtpproxy.

Regards
Trevor Steyn


On 01/10/2015 08:47, Raistlin Majere wrote:
> Hi again,
>
> Well I have read a bit more about the modes and yes, we use brigde
> mode as OpenSIPS is behind both sides of the NAT not only on the WAN
> side,  OpenSIPs is within the firewall,
>
> So basically the engage_rtp_proxy is not a good idea.
>
> route[1] {
> if(!cache_fetch("local", "outerip_$var(destinationIp)", $avp(outerIp))) {
> get_outer_ip("$var(destinationIp)", "$avp(outerIp)");
> cache_store("local", "outerip_$var(destinationIp)", "$avp(outerIp)", 10);
> }
>
> $fs = $proto + ":" + $avp(outerIp);
>
> if (is_method("BYE|CANCEL")) {
> unforce_rtp_proxy();
> } else if (is_method("INVITE")){
> if (has_body("application/sdp")) {
> $var(trustconnectionip) = "%TRUSTCONNECTIONIP%";
> $var(ciptrusted) = "no";
> if ($var(trustconnectionip)=="yes") {
> $var(ciptrusted) = "yes";
> } else if ($var(trustconnectionip)=="auto") {
> $var(sdpc) = $(rb{sdp.line,c}{s.substr,9,0});
> if($td == $fd && $td != $var(sdpc)) {
> $var(ciptrusted) = "yes";
> }
> }
> if ($var(ciptrusted)=="yes") {
> rtpproxy_offer("focnr");
> } else {
> rtpproxy_offer("focn");
> }
> }
> }
>
> # Prevent $var(destinationPort) from getting default port number 5060
> for TLS if no port specified in R-URI.
> if($(ru{uri.port})=="" && $proto=="tls" &&
> $var(destinationPort)=="5060") {
> $var(destinationPort) = 5061;
> }
>
> # force the transport protocol to the same one the client used
> $du =
> "sip:"+$var(destinationIp)+":"+$var(destinationPort)+";transport="+$proto;
>
> t_on_reply("1");
>
> # for INVITEs enable some additional helper routes
> if (is_method("INVITE")) {
> t_on_failure("1");
> }
>
> if (!t_relay()) {
> xlog("L_INFO", "Relay error");
> sl_reply_error();
> }
> exit;
> }
>
> The route[1] is set in the main route under this conditions
>
> if (has_totag()) {
> # sequential request within a dialog should
> # take the path determined by record-routing
> if (loose_route()) {
> $var(destinationIp) = $avp(requestIp);
> $var(destinationPort) = $rp;
>
> if (is_method("INVITE")) {
> # even if in most of the cases is useless, do RR for
> # re-INVITEs alos, as some buggy clients do change route set
> # during the dialog.
> record_route();
> }
> # route it out to whatever destination was set by loose_route()
> # in $du (destination URI).
> route(1);
> ...
>        exit;
> }
> ....
>
> And if there is no REGISTER, PUBLISH, CANCEL
>
> route(1);
> }
>
>
>
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