Asterisk 11.6-cert13 And G729 Codec One Way Audio

Home » Asterisk Users » Asterisk 11.6-cert13 And G729 Codec One Way Audio
Asterisk Users No Comments


Recently I’ve installed Asterisk 11.6-cert13 on a physical server. Downloaded g729 codec from for version 11 and installed as instructed.

Asterisk starts and `core show codecs` shows G.729A codec. Also `core show translation` show 15000 for g729 to alaw and alaw to g729.

The client authenticated has allowed calls alaw,ulaw,gsm,g729 (in this order). Client has enabled only g729 codec only.

When client calls a number, which is routed to a trunk which uses only alaw codec, connections is established, but voice from client to the called party is not heared. Voice from called party to client is heard. So alaw to g729 translation is done, but g729 to alaw is not working.

When client uses only alaw codec, or ulaw codec, voice works ok in both ends.

What can be cause with the g729 codec?

Thank you.