[Asterisk-Users] Leaving messages on answering machines (no its notspam)

[Clayton Smith]

Hey thanks, thats a great idea too

Basicly just check for a pause, if i don't get one quickly, then its an 
answering machine

And both ideas are compatible, so i could do both at the same time


Chears


Scott Stingel wrote:

>Answering machine detection is usually accomplished by analysing the timing
>of the voice energy in the initial answer period.  People usually answer by
>saying: "Hello", "Frank Giwerski", "Pencil sharpening department", or
>something fairly short, whereas answering messages are usually longer.
>
>So, I think the usualy method is to have the software "listen" to the voice
>energy for some initial period until there's a pause, and decide based on
>the duration of this energy whether it's a human or machine.
>
>But listening for a beep, although less efficient maybe, might work too!
>
>Regards
>Scott
>
>
>Scott M. Stingel
>President,
>Emerging Voice Technology, Inc.
>Palo Alto California & London England
>www.evtmedia.com 
>
>-----Original Message-----
>From: asterisk-users-bounces at lists.digium.com
>[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Clayton Smith
>Sent: Thursday, September 02, 2004 11:07 AM
>To: Asterisk Users Mailing List - Non-Commercial Discussion
>Subject: [Asterisk-Users] Leaving messages on answering machines (no its
>notspam)
>
>Hey there
>
>I'm trying to get asterisk to leave messages on answering machines So i have
>a pretty cool php notifying script (it notifys, it doesn't
>spam!!) to phones and cellphones
>
>Now all is fine if a human picks up, but if an answering machine picks up,
>well the script plays, but only the ending is recorded
>
>So really, the tricky part is knowing WHEN to leave a message
>
>Now to the best of my knowledge, there is no way to tell when an answering
>machine picks it (be it the "sprint cellphone operator", or  a home owned
>cellphone), but i was thinking...
>
>I could play my script using an EAGI script So i get extensions to run an
>EAGI script, that then manages everything, So when the call is picked up,
>relay the message, but if a high pitched beep is detected (via the EAGI
>script), repeat the message from scratch
>
>Now I'm no expert on asterisk, and i can see that this method could be a
>little buggy, so I'm wondering if there are any suggestions or if there is a
>better way to leaving messages on answering machines
>
>Any help or suggestions will be greatly appreciated Thanks
>
>
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