asterisk users - Apr 2005 - Codecs and * pass through...

Hello all,

I came a cross a problem yesterday that I don't quite know how to solve. 
I am trying to use * to connect to net2phone, and have a net2phone MAX 
IP-10 connect to net2phone. From the settings on 
http://www.voip-info.org/ it was easy to get asterisk to connect to the 
network - acting like a net2phone device/user. Anyway the problem arose 
when attempting to call the MAX IP-10 device through the net2phone 
network. They seem to be using the G732.1 codec. I have in my settings 
in sip.conf allow=G732.1 or what ever flavour of the like and still I 
can not talk to the two devices. I googled a bit and came across the 
fact of * being able to do a pass through - well I was not successful 
and this subject is either simple or not well documented. The devices 
are using SIP and there is a bridge initiated, but there is no audio and 
no voice being passed through... I have tried connecting as the 
receiving device a GrandStrem Budge Tone-100 and still no luck. So all 
that I am inquiring is has anyone successfully done a pass through and 
if so can someone please guide me through some of the settings. I have 
set the [net2phone] with a canreinvite=yes - that a post on a forum also 
suggested, and that also did not work.

On a separate issue: When the Grandstream Budge Tone-100 is connected on 
the internal network then the audio and the voice in both directions 
work fine. But when the device is connected on a separate network - ie 
on an other ADSL line, then the device doesn't send voice packets 
although is receives packets. I have opened up IPTABLES, to allow udp 
5060 and udp 10000:20000 in both directions on any interface and the 
problem still persists. (SIP phone: Grandstream Budge Tone 100 connects 
to * and the call is answered by a Softphone X-Lite with all the codecs 
enabled. As far as I can tell thy both are "speaking" with a G711
codec
ULaw/ALaw).

So can anyone please give me a guideline or some advise on where to look 
to solve the problem.

-- 
Kind Regards
Etienne

Etienne, howzit

I am not 100% sure about this, but Net2phone do not always use 
standard SIP as the protocol. They have their own proprietry 
protocol as well, so perhaps your phone is trying to talk on the 
proprietry protocol.

For G723.1 passthrough, you just allow it, and it should work fine, as 
long as you do not try playing any voice prompts to the channel.

good luck.

regards
Clive
====================Phone I.T.
http://www.phonehome.co.za



On 13 Apr 2005 at 8:52, Etienne Pretorius wrote:
> Hello all,
> 
> I came a cross a problem yesterday that I don't quite know how to
solve.
> I am trying to use * to connect to net2phone, and have a net2phone MAX 
> IP-10 connect to net2phone. From the settings on 
> http://www.voip-info.org/ it was easy to get asterisk to connect to the 
> network - acting like a net2phone device/user. Anyway the problem arose 
> when attempting to call the MAX IP-10 device through the net2phone 
> network. They seem to be using the G732.1 codec. I have in my settings 
> in sip.conf allow=G732.1 or what ever flavour of the like and still I 
> can not talk to the two devices. I googled a bit and came across the 
> fact of * being able to do a pass through - well I was not successful 
> and this subject is either simple or not well documented. The devices 
> are using SIP and there is a bridge initiated, but there is no audio and 
> no voice being passed through... I have tried connecting as the 
> receiving device a GrandStrem Budge Tone-100 and still no luck. So all 
> that I am inquiring is has anyone successfully done a pass through and 
> if so can someone please guide me through some of the settings. I have 
> set the [net2phone] with a canreinvite=yes - that a post on a forum also 
> suggested, and that also did not work.
> 
> On a separate issue: When the Grandstream Budge Tone-100 is connected on 
> the internal network then the audio and the voice in both directions 
> work fine. But when the device is connected on a separate network - ie 
> on an other ADSL line, then the device doesn't send voice packets 
> although is receives packets. I have opened up IPTABLES, to allow udp 
> 5060 and udp 10000:20000 in both directions on any interface and the 
> problem still persists. (SIP phone: Grandstream Budge Tone 100 connects 
> to * and the call is answered by a Softphone X-Lite with all the codecs 
> enabled. As far as I can tell thy both are "speaking" with a G711
codec
> ULaw/ALaw).
> 
> So can anyone please give me a guideline or some advise on where to look 
> to solve the problem.
> 
> -- 
> Kind Regards
> Etienne
> 
> 
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