[OpenSIPS-Users] Force media through the Opensips server

[TeleCube - John]

Hi Max,

Thanks for your reply.

I have rtpproxy running and I think it's all configured ok.

I can use fix_nated_sdp() with flags and see the changes in the sdp 
lines in the packets.

What I am struggling with is just how to go about telling the asterisk 
server and the outbound route that all traffic is to run through my proxy

I'm not sure what the purpose of the o= and c= lines are and at which 
stage in the packet flow I need to re-write which lines.

If anyone can offer any pointers that will be awesome.

Kind regards,
John

Max Mühlbronner wrote:
>   Hello,
>
> Yes, the opensips will rewrite the sdp like you said, so it will contain 
> the ip of the rtpproxy (or mediaproxy).  It can be used to proxy the rtp 
> traffic to a specific destination.
>
> But the rtpproxy does not necessarily have to be the same machine as 
> your Opensips. The rtpproxy is a different tool which will be enabled by 
> setting the relevant modparam settings and also calling the rtpproxy in 
> your routing-script.
>
> http://voiprookie.blogspot.com/2009/04/rtpproxy-12x-installation.html
>
> maybe there are also other, better tutorials but this link seems to be a 
> good start for setting up rtpproxy with opensips.
>
>
> BR
>
> Max M.
>
>
> Am 27.08.2010 15:36, schrieb TeleCube - John:
>   
>> Hi,
>>
>> I have a setup as follows:
>>
>> 1.2.3.4 - Outbound Route
>> 4.5.6.7 - Opensips proxy
>> 4.5.6.8 - Asterisk server
>>
>> The outbound route will only allow any traffic, signaling and media, via
>> the 4.5.6.7 IP address. It cannot currently accept media from a
>> different ip than the signaling.
>>
>> Currently the astx server sends media direct to the outbound route.
>>
>> Signaling is fine but I need to force the media stream from the asterisk
>> server through the opensips proxy.
>>
>> Am I correct in expecting that nathelper/rtpproxy can do this?
>>
>> Is it simply a matter of re-writing the sdp detail that will tell the
>> asterisk server to route media through the opensips ip address?
>>
>> Any examples will be greatly appreciated.
>>
>> Thanks,
>> John
>>
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>>
>>     
>
>
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