[asterisk-users] Voicemail cutting out after about 30 seconds

[Gordon Henderson]

On Wed, 24 Sep 2008, Chris Bagnall wrote:

> Greetings list,
>
> I've had problems on a few of our asterisk boxes where voicemail tends 
> to cut out after about 30 seconds, despite the maximum message length 
> being set at 240s (4m).
>
> I've tried reducing the silence detection threshold from 128 down to 32, 
> which has helped, but not resolved the issue entirely.
>
> The calls in question are being delivered to the boxes via IAX or SIP, 
> so it's not a Zaptel gain issue.
>
> Has anyone else had similar problems? Is it "safe" to drop the silence 
> detection threshold even lower?

Try:

In /etc/asterisk/asterisk.conf, under

   [options]

add

   transmit_silence_during_record = yes

That stopped a remote site I was taking VoIP calls from hanging up after 
30 seconds in a custom recording setup...

Gordon