[Asterisk-Users] SIP Extension behind NAT, Asterisk on a public domain

[Tom Rymes]

On Nov 24, 2005, at 12:14 PM, Bharath wrote:

> I found out that I have a faulty Belkin Router which was causing  
> the problem. I tried forwarding ports as well as DMZ'd the Sip  
> device but still could'nt not hear the voice. So i plugged the sip  
> device directly to the cable modem & it worked fine. So my guess is  
> that though I have set up the router to forwards port to the sip  
> device there is something happening at the router that is blocking  
> the RTP ports (10000-20000).
> Thanks

Before you blame the router, make sure that you forwarded UDP ports  
5060 and 10000-20000, not TCP. (Though I guess the DMZ setup would  
have taken care of that...)

Tom

--------------------
Tom Rymes
Cascade Link Systems
www.cascadelinksystems.com
(603) 375-1414

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