[OpenSIPS-Users] nat_traversal samples?

Bogdan-Andrei Iancu bogdan at voice-system.ro
Wed Jan 12 20:10:58 CET 2011


Jeff Chua wrote:
> On Wed, Jan 12, 2011 at 7:56 PM, Bogdan-Andrei Iancu
> <bogdan at voice-system.ro> wrote:
>   
>> Hi Jeff,
>>
>> The UDP versus TCP issue is for the communication between opensips and media
>> relay ? If so, how comes you have a firewall between them ? you have
>> opensips and the media relay in different networks ?
>>     
>
> Bogdan,
>
> I'm looking for something like this ...
>
> SIP Client A -- OpenSIPS B -- VPN (only TCP/IP allowed) -- OpenSIPS C
> -- SIP Client D
>
> I read that with nat_travesal, I won't even need rtpproxy or mediaproxy.
>   
Jeff,

where is the nat part here ? can you directly route between OpenSIPS B 
and C ?

Regarding TCP, if everything must go through TCP, that will be 
tricky...you can make SIP to go via TCP, but RTP is UDP oriented ...

Regards,
Bogdan

>
> Thanks,
> Jeff
>
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>   


-- 
Bogdan-Andrei Iancu
OpenSIPS Event - expo, conf, social, bootcamp
2 - 4 February 2011, ITExpo, Miami,  USA
www.voice-system.ro




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