[Freeswitch-users] problem on playinback " .wav "files on freeswitch using asterisk with Codec G729 ?

[Samira Mh]

hi guys,
as you know on freeswitch the codec G729 only use fro pass through,
so we couldn't play .wav file using codec G729,
so i have installed asterisk to everytime i want to play file with that codec 
play them on asterisk using gateway on freeswitch ,
but in asterisk when i issue the command (exten => 999,1,playback(hello-world)) the file play successfully using freeswitch that is connect to asterisk
but i don't want to answer channel at this situation so issue the command (exten => 999,1,playback(hello-world,noanswer) or 
(exten => 999,1,background(hello-world,n) -- n used to don't answer channel )) i don't hear the sound of .wav file

on the debug of sip on asterisk the file is played and command was executed but i coudn't hear sound
notice:because of using nibble_account on freeswitch i don't want to answer channel to reduce the cash 
plz help
thanks 
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