[Asterisk-Users] How to detect answering machine

[Brian Jones]

On 13-Aug-04, at 12:46 PM, Christian Victor wrote:

> Hi!
>
> Does anyone of you have an idea how to detect an answering machine on 
> a dialout call?

I have thought of timing the amount of silence there is at the start of 
a call, as an answering machine will usually start speaking as soon as 
the call is picked up.  There would probably be a brief silence when a 
human picks up a handset.  This would probably require a bit of work 
though.

Brian.



>
> I am working an a voicemail system wich calls the subscriber but I 
> don't want to fill their answering machine.
>
> Maybe I could detect somehow if there is incoming voice when playing 
> the message. usually real persons don't talk when they listen but 
> answeringmachines do. ;-)
>
> Thanks in advance,
> Chris
>
>
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