[Freeswitch-users] mod_avmd with mod_com_g729

[Ken Rice]

You're better off using G711... G729 is designed for speech compression not for sinal tone compression. This is why its recommended to use out of band signaling for DTMF with G729...

Plus if you are in the US the cost of bandwidth just isn’t worth it unless you are somewhere like no where Arkansas where they don’t have bandwidth...



-----Original Message-----
From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Chad
Sent: Monday, October 3, 2016 4:27 PM
To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
Subject: [Freeswitch-users] mod_avmd with mod_com_g729

Hello FreeSWITCH Users,

Just to get this out of the way:
FreeSWITCH 1.6.10 installed via CentOS 7 repo

I’m curious to see if anyone is using the g729 codec with mod_avmd. I’m doing some testing for a project here which is going to require some answering machine detection. We would like to use the g729 codec to keep bandwidth down but I am running into an issue where avmd detects a false beep right after being started on the channel via the ESL. This happens about 50% of the time but I haven’t been able to reproduce the issue using PCMU. In the console I see avmd start, the media bug gets set and the g729 encoder / decoder gets allocated. Immediately after this happens  a beep is detected causing my application to go in the wrong direction.

Any input is welcome.

Thanks!

Chad


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