Asterisk: не воспроизводит аудио, playback выдает ошибку, как исправить?

Question

[krll-k]

[Apr 24 09:08:32] WARNING[1438][C-00000001]: channel.c:5309 set_format: Unable to find a codec translation path from (
g729) to (gsm|ulaw|alaw|slin)
[Apr 24 09:08:32] WARNING[1438][C-00000001]: file.c:1017 ast_streamfile: Unable to open /home/krll/sounds/hello (forma
t (g729)): No such file or directory
[Apr 24 09:08:32] WARNING[1438][C-00000001]: app_playback.c:484 playback_exec: ast_streamfile failed on SIP/sipnet-000
00001 for /home/krll/sounds/hello