[asterisk-users] inband DTMF for g729

[Gang Chen]

----- Original Message ----- 
From: "Kristian Kielhofner" <kristian.kielhofner at gmail.com>
To: "Asterisk Users Mailing List - Non-Commercial Discussion" 
<asterisk-users at lists.digium.com>
Sent: Friday, June 22, 2007 4:32 PM
Subject: Re: [asterisk-users] inband DTMF for g729


> On 6/22/07, Gary Chen <gang.chen at insightbb.com> wrote:
>> We are using Level 3. At this point, changing carrier is not an option.
>>
>
> Gary,
>
>  I use Level(3) with G729a and RFC2833.  No problems, no requirement
> for inband G729.
>
>
> -- 
> Kristian Kielhofner
>

I can connect to Asterisk IVR using a SIP phone and send RFC2833 with g729. 
It works fine. But when test call from PSTN to Asterisk, if I set dtmf=auto 
with g729, I got warning saying something like  * does not support inband 
for g729 and sutomaticlly switch to rfc2833.  If I set dtmf=g729, there is 
no warning but I have the same problem. This tells me that Level3 does use 
inband for g729 or maybe I am doing something wrong .

Gary