[SR-Users] Kamailio cfg file doubt

[Olle E. Johansson]

16 nov 2012 kl. 12:18 skrev Kamal Palei <palei.kamal at gmail.com>:

> Dear All
> When I get INVITE (received in UDP), I send it to another proxy in TLS.
> For this purpose I have modified kamailio.cfg route section , please refer the lines in red.
> Just before sending in TLS, I modify the IP address in SDP, so that media packets will pass through RTP proxy running 
> When INVITE is reached the next proxy, I see the IP address is changed . So far so good.
> 
> Next I am trying to modify the IP address in 200 OK to INVITE.
> However it is not taking effect.
> 
> I hope we need to modify in onreply_route function. Something is wrong here. I am receiving 200 OK for INVITE in TLS. Next I am sending 200 OK for INVITE to endpoints using UDP. Not sure if onreply_route is being executed or not. Can somebody give me pointer whats wrong here.
> 
THe onreply_route {} is executed for every response. If you want to trigger your own reply route, like your onreply_route[REPLY_ONE] {} you have to do it with the TM module funcition
t_on_reply().

/O

> # Sample onreply route
> onreply_route[REPLY_ONE] {
> 
>         xdbg("incoming reply\n");
> #!ifdef WITH_NAT
>         if ((isflagset(FLT_NATS) || isbflagset(FLB_NATB))
>                         && status=~"(183)|(2[0-9][0-9])") {
>                 force_rtp_proxy("r");
>         }
>         if (isbflagset(FLB_NATB)) {
>                 fix_nated_contact();
>         }
> #!endif
> }
> 
> 
> 
> # Main SIP request routing logic
> # - processing of any incoming SIP request starts with this route
> route {
> 
>         # per request initial checks
>         route(REQINIT);
>         setflag(FLT_NATS);
>         # NAT detection
>         route(NAT);
> 
>         if(is_method("PUBLISH"))
>         {
>                 loose_route();
>                 t_relay();
>                 exit;
>         }
> 
> 
>         if(is_method("REGISTER"))
>         {
>                 t_relay_to("tls:115.114.48.75:443");
>                 exit();
>         }
> 
>         if(is_method("INVITE|BYE|CANCEL|SUBSCRIBE|REFER|NOTIFY"))
>         {
>                 xdbg("incoming request\n");
> 
>                 route(RTPPROXY);
>                 t_relay_to("tls:115.114.48.75:443");
>                 exit();
>         }
> 

--
* Olle E. Johansson - oej at edvina.net
* Kamailio & SIP Masterclass Miami FL December 2012
* http://edvina.net/training/




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