[asterisk-users] Setting RTP ports for Asterisk?

[Derek Whitten]

Vincent Delporte wrote:
> Hello
> 
> When I make calls from home to the PSTN by going through the Net ->
> Asterisk -> the Net -> VoIP provider -> PSTN, I get no sound either way.
> I assume it's because I must tell Asterisk to use fixed ranges of UDP
> ports and map ports accordingly on the NAT firewall under which it is
> located on the LAN at work.
> 
> Here's the schema:
> home > NAT > Internet > NAT > Asterisk > NAT > Internet > VoIP provide >
> PSTN > callee
> 
> I took care of the NAT at home by using fixed ports in X-Lite + used
> STUN, so I guess the problem is located on the Asterisk side.
> 
> 1. What are the settings (in sip.conf?) to tell Asterisk to use specific
> ports for RTP?
> 2. With this kind of setup, does Asterisk stay in the loop to forward
> RTP packets, or do X-Lite at home and the VoIP provider send RTP to each
> other directly?
> 
> Thank you.
> 
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try rtp.conf

:-D




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