[asterisk-users] No sound from playback and voicemail

[Atis Lezdins]

Stefan Guenther wrote:
> Hello,
> 
> I have a strange situation:
> 
> I can talk to other SIP phones and via ISDN to the outside, but I don't hear
> playbacks or the voicemail messages.
> Asterisk show in the cli, that the corresponding files are played, but I hear
> nothing at all.
> 
> Here is as simple example:
> 
> [monkeys]
>     exten => 99,1,ANSWER()
>     exten => 99,2,PLAYBACK(tt-monkeys)
>     exten => 99,3,HANGUP()
> 
> The phone has access to this context, and the file exists, all codecs are
> allowed.
> I have tried to load either chan_alsa.so or chan_oss.so but it doesn't change
> anything.
> 
> Does anyone have an idea what could be wrong? This is not the first Asterisk
> system that I set up, but I never had a problem like this.
> 
> Asterisk is version 1.4.13

Do you have zaptel loaded? Could this be related?

http://lists.digium.com/pipermail/asterisk-users/2007-November/199784.html

If you do - you can try downgrading zaptel version.

Regards,
Atis