[SR-Users] Audio issue when using 2 port ATA

[Daniel-Constantin Mierla]

Hello,

is the firewall doing SIP ALG?

Can you get a SIP network trace on UA? If yes, compare it with the one
captured on server.

Cheers,
Daniel

On 06/01/16 01:50, Daniel W. Graham wrote:
>
> Setup is -
>
>  
>
> 2 port ATA <> FIREWALL <> KAMAILIO / RTPPROXY <> ASTERISK
>
>  
>
> If I have a single port in use behind the firewall, all NAT functions
> work properly and media is relayed through rtpproxy.
>
>  
>
> If I have both ports in use behind the firewall, when outbound calls
> from UA are placed there is two way audio on both calls. However if
> inbound calls are placed to UA, the first call works, second call only
> has outbound audio.
>
>  
>
> Different SIP URI is used for each port.
>
>  
>
> If the firewall is eliminated everything works fine.
>
>  
>
> Anyone have an idea how to troubleshoot or what could be missing? I
> have done packet captures on both the UA side and Kamailio side, and I
> see two RTP flows (rtp ports match on both sides as well) despite lack
> of inbound audio on the second call.
>
>  
>
> If I can post anything config wise that would help let me know.
>
>  
>
> Thanks!
>
>  
>
> -Dan
>
>  
>
>
>
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-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Book: SIP Routing With Kamailio - http://www.asipto.com
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