[OpenSIPS-Users] media proxy - B2BUA(signaling only)

[Julien Chavanton]

Hi Bogdan,
I have found this logic that is working (tested), I think it will not create problem as it is not possible for a new INVITE to already have the media-proxy IP if is not already passing trought the proxy once.
 
 
 
 #####---> Force media proxy
 if(is_present_hf("Media-Proxy")){
        xlog("L_NOTICE", "***MEDIA PROXY FOUND [on another call leg]\n***");
 }
 else{
        if(search_body("c=IN IP4 1.1.1.1") && method == "INVITE"){
                #####---> Tag the call, not to engage media proxy
                append_hf("Media-Proxy: engaged\r\n");
        }
        else{
                $avp(s:media_relay) = "1.1.1.1";
                use_media_proxy();
        }
 }


________________________________

From: users-bounces at lists.opensips.org on behalf of Bogdan-Andrei Iancu
Sent: Wed 20/01/2010 5:58 PM
To: OpenSIPS users mailling list
Subject: Re: [OpenSIPS-Users] media proxy - B2BUA(signaling only)



Hi Julien,

Just a wild guess - maybe the mediaproxy does not work as you may invoke
it (request and reply) for different calls (for request on UA_A call and
for reply on UA_B calls) - afaik, both mediaproxy and rtpproxy use the
callid in order to bridge the request and reply SDP ports....But because
of B2BUA, you actually have 2 calls.

So, be sure you do both media setup steps on the same call (only on one
side of the B2BUA).

Regards,
Bogdan

Julien Chavanton wrote:
> Humm, this does not work, as when the "200 OK" comes back from UA_B
> there is a need to set media proxy and a second session is set on the
> media proxy.
> Any suggestion on how to handle this senario ?
> 
>
> ------------------------------------------------------------------------
> *From:* users-bounces at lists.opensips.org on behalf of Julien Chavanton
> *Sent:* Tue 19/01/2010 8:55 PM
> *To:* OpenSIPS users mailling list; Users at lists.opensips.org
> *Subject:* Re: [OpenSIPS-Users] media proxy - B2BUA(signaling only)
>
> 
> I found what was going on more in details, when the second call comes
> in the RTP port is set as the correct one from the first call,
> however, I issue another use_media_proxy() and a new port is set, I
> guess I could ignore the use media proxy this time by validating if
> the IP of the media proxy is already in SDP "m=audio x.x.x.x", I will
> try this
> 
> Opensip_A --invite--> B2B_UA
> m=audio 52542 RTP/AVP 18 8 0
> 
> B2B_UA --invite--> Opensip_A
> m=audio 52542 RTP/AVP 18 8 0
> 
> (use media proxy)
> 
> Opensip_A --invite--> UA_B
> m=audio 50506 RTP/AVP 18 8 0
>
> 
> ------------------------------------------------------------------------
> *From:* users-bounces at lists.opensips.org on behalf of Julien Chavanton
> *Sent:* Tue 19/01/2010 6:43 PM
> *To:* Users at lists.opensips.org
> *Subject:* [OpenSIPS-Users] media proxy - B2BUA(signaling only)
>
> Hi,
> 
> I have this senario :
> 
> UA_A --> Opensip_A --> SIP_B2BUA(signaling only) --> Opensip_A --> UA_B
> 
> this result is 2 calls(different callid) on Opensip_A however UA_A and
> UA_B are connecting the the MediaProxy on 2 differents calls and the
> audio is not bridged between them.
> 
> It there a way the make the media proxy aware about the fact that the
> 2 calls should be bridged ?
> 
> 
> ------------------------------------------------------------------------
>
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> Users mailing list
> Users at lists.opensips.org
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>  


--
Bogdan-Andrei Iancu
www.voice-system.ro


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