[OpenSIPS-Users] Need Help on Handling REFER Messages

[Bogdan-Andrei Iancu]

Hi Dinusha,

What you have in route[1] has to go into local route. And from 
onreply_route, to the b2b_reply_route :).

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com


On 07/12/2012 03:13 PM, Dinusha Kannangara wrote:
> Thank you for the quick reply :) and the REFER scenario is working 
> fine without rtp.
>
> I'm sorry for being such a noob on this as I'm new to opensips and 
> even sip message handling :( I have tried out adding code to local 
> route and b2b_reply_route sections but rtp is not working - I think it 
> has to do with how I've wrote the config.
>
> before adding the b2bua I had my rtpproxy_engage() called on my 
> route[1] before I call t_relay() and had the fix_nated_contact on my 
> onreply _route.
>
> here's a summarized version on my config. Can you please look at it 
> and tell me which methods should be moved on to local route and 
> b2b_reply_route.
>
> route
> {
>   .....
>   if(is_method("INVITE"))
>   {
>     do load balancing
>     route(1);
>   }
> }
>
> route[1]
> {
>     .....
>     .....
>     if( is_method("INVITE"))
>     {
>          engage_rtpproxy();
>     }
>     else if( is_method("BYE" || "CANCEL"))
>     {
>          unforce_rtpproxy();
>     }
> }
>
> onreply_route[1]
> {
>     if (isbflagset(6))
>         {
>                 log("\n\n\n-------ON REPLY ROUTE FIX NATED 
> CONTACT-------\n\n\n");
>                 search_append('Contact:.*sip:[^>[:cntrl:]]*', ';nat=yes');
>                 fix_nated_contact();
>         }
>
> }
>
>
> On Wed, Jul 11, 2012 at 8:19 PM, Bogdan-Andrei Iancu 
> <bogdan at opensips.org <mailto:bogdan at opensips.org>> wrote:
>
>     Move to the "local" and "b2b_reply" routes only the part regarding
>     insertion of RTPproxy.
>
>     Regards,
>
>     Bogdan-Andrei Iancu
>     OpenSIPS Founder and Developer
>     http://www.opensips-solutions.com
>
>
>     On 07/11/2012 05:21 PM, Dinusha Kannangara wrote:
>>     Thanks for the reply, I will try that for sure :)
>>
>>     Just to clarify, so whatever I had on request route and reply
>>     route (including rtp proxy and nathelper methods) should be
>>     written on b2b_request and b2b_reply, right ?
>>
>>     On Tue, Jul 10, 2012 at 3:59 PM, Bogdan-Andrei Iancu
>>     <bogdan at opensips.org <mailto:bogdan at opensips.org>> wrote:
>>
>>         Hi Dinusha,
>>
>>         How I see it is: do LB, after LB, trigger B2B with
>>         REFER-handling scenario, and on the outbound part of b2b
>>         (using local route for INVITE and b2b_reply for incoming
>>         replies) insert rtpproxy.
>>
>>         Of course, I assume that LB and B2B are on the same instance
>>         of OpenSIPS.
>>
>>         Regards,
>>
>>         Bogdan-Andrei Iancu
>>         OpenSIPS Founder and Developer
>>         http://www.opensips-solutions.com
>>
>>
>>         On 07/06/2012 06:44 PM, Dinusha Kannangara wrote:
>>>         Hi all,
>>>
>>>         I currently have my opensips configured with a rtpproxy and
>>>         uses the nathelper module and everything seem to be working
>>>         fine.
>>>
>>>         Now, I have a new requirement where my opensips should have
>>>         to handle REFER messages generated from a media server and
>>>         I'm not sure what I should do.
>>>
>>>         I've seen that b2bua module is capable of this and I also
>>>         had a look at the example done on opensips.org
>>>         <http://opensips.org>.
>>>
>>>         Here's my scenario,
>>>
>>>         User1(softphone) calls opensips server and opensips do load
>>>         balancing and redirect the call to a Media Server. Then,
>>>         Media Server will send a REFER message to opensips
>>>         specifying a refer-to User2(another softphone) and the media
>>>         server should remove itself from the call and let User1 and
>>>         User2 connect to each other through opensips.
>>>
>>>         Here are my questions :
>>>
>>>         1) The rtpproxy module re-writes SDP and how does this
>>>         affect if I use b2bua module to handle REFER messages ?
>>>         2) Will the work done by nathelper and rtpproxy be undone if
>>>         I call b2b_init_request on the initial INVITE ?
>>>         3) Do I have to have a separate IP for b2bua server or is it
>>>         ok to run it on the same ip which the opensips is running ?
>>>         4) I have seen some people block the INVITE's coming from
>>>         b2bua server IP at initial INVITE.. do I have to do this too ?
>>>
>>>         Thank You, :)
>>>
>>>         Regards,
>>>         Dinusha.
>>>
>>>
>>>         _______________________________________________
>>>         Users mailing list
>>>         Users at lists.opensips.org  <mailto:Users at lists.opensips.org>
>>>         http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
>>
>
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