[OpenSIPS-Users] Need Help on Handling REFER Messages

[Dinusha Kannangara]

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>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 Developerhttp://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.
>
> 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.
>
>
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>
>
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