asterisk users - Dec 2008 - Asterisk and NAT one way audio

Hello may situation is the next:

Asterisk <--> NAT1 (router)<---> internet <--> NAT2 (router)
<--> x-lite
                          ^
                           |
                          ip phone (cisco)

Asterisk and de cisco phone are in the same LAN. I want to make a
call between the x-lite and the ip phone. I can do the call but there is
only audio from de ip-phone to the x-lite. From the x-lite to de ip phone
there is no audio.
I have made port fordwarding in the router 1. I have opened ports 5060-5070
to SIP and 10000-20000 to RTP.
In the sip.conf file I have externip, localnet, bindport, bindaddres, nat yes
etc.
I have used wireshark to see the frames and there is rtp traffic in both
direccion so i don?t know what the problem is.
I have used the x-lite in the same LAN than the ip-phone and all is good so
the two phones works fine.
What is the problem? Thank you in advance


-- 
Silvia
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On Thu, Dec 18, 2008 at 12:46 AM, Silvia Menendez <silvia.menendez at
gmail.com
> wrote:
> Hello may situation is the next:
>
> Asterisk <--> NAT1 (router)<---> internet <--> NAT2
(router) <--> x-lite
>                           ^
>                            |
>                           ip phone (cisco)
>
> Asterisk and de cisco phone are in the same LAN. I want to make a
> call between the x-lite and the ip phone. I can do the call but there is
> only audio from de ip-phone to the x-lite. From the x-lite to de ip phone
> there is no audio.
> I have made port fordwarding in the router 1. I have opened ports 5060-5070
> to SIP and 10000-20000 to RTP.
> In the sip.conf file I have externip, localnet, bindport, bindaddres, nat
> yes etc.
> I have used wireshark to see the frames and there is rtp traffic in both
> direccion so i don?t know what the problem is.
> I have used the x-lite in the same LAN than the ip-phone and all is good so
> the two phones works fine.
> What is the problem? Thank you in advance
>
a pointer to check, in rtp.conf just make sure that rtp start port is set
explicitly rtpstart=10000, cause default rtpstart is 5000 so opening port
10000-20000 in router without setting this may not help.

-- 
Thanks & Regards,
Godson Gera
http://godson.in/voip-asterisk-consultant-hyderabad-india
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