[asterisk-users] How to detect if the call is being answered by Voice Mail?

[Steve Edwards]

On Tue, 25 Aug 2009, Bharath B. Reddy Bynagari wrote:

> I am pretty new to Asterisk. I am trying to make sure some human being 
> answers the phone not the voice mail machine. How can I programmatically 
> identify that?

The "best" way is to ask the caller to press a key to continue. Most 
answering machines have difficulty with this.

There are various "answering machine detection" schemes about. Google for 
Justin Newman and answering machine detection. He's put out some pretty 
cool tools in the past.

-- 
Thanks in advance,
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Steve Edwards       sedwards at sedwards.com      Voice: +1-760-468-3867 PST
Newline                                              Fax: +1-760-731-3000