Codec GSM

jfmunera · Post by **jfmunera** » Sat Jan 08, 2011 6:23 am

1. Brekeke Product Name and version: Stable Vesion 2.4.7.3

2. Java version:1.5.0.15

3. OS type and the version: Centos 5.5

4. UA (phone), gateway or other hardware/software involved:

5. Select your network pattern from http://www.brekeke-sip.com/bbs/network/ ... terns.html :

http://www.brekeke-sip.com/bbs/network/ ... terns.html

6. Your problem:

I have configured a SIP trunk, my problem is that the sip trunk provider tells me that only works with GSM codec and I have the plant set to work with G729 codec. but the packets are large supplier says is why I have problems with choppy calls heard. provider says I'm eating the 400K channel 3 or 4 calls.

Perform a traffic analysis and I find that I'm used G729.

With Brekeke I can configure to use the GSM codec.

Thanks.

n2a1ce · Post by **n2a1ce** » Mon Jan 10, 2011 7:42 am

h1, you tried set Codec priority 8,0 - ??? sometimes helps
Options > Settings -> PBX system settings -> Codec priority 8,0
Options > Settings -> Media Server system settings -> Codec priority 8,0

and in ARS

or 18,0 but I have not tested

Haddas · Post by **Haddas** » Mon Jan 10, 2011 11:35 am

For your info..

You can check codec's Payload Type number at
http://www.networksorcery.com/enp/protocol/rtp.htm

For example
G729 is 18
GSM is 3