[Asterisk-Users] How to detect answering machine

[Christian Victor]

Hi!

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

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