Re: Telephone answering machine??

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Date: Sat, 28 Aug 2004 08:22:00 -0400

Ken Luther wrote:
> Hello,
>
> I once had a phone modem with software that would answer the phone,
> direct the caller, through a recorded menu system that allowed the
> caller to select (punch in) an extension number, to leave a voice
> message.
>
> I[t] would let you set up quite a few voice mailboxes (extensions) -- kind
> of like a switchboard operator. You then called the number and using
> the extension password for your extension could play back your recorded
> calls.
>
> Does Linux have any software that does that??
>
I do not know how to do it with a modem. I worked for a company that made
an extremely advanced PBX (would handle voice, text, and images) with
immediate and deferred communication.

The problem with the modems I know is that they cannot accept DTMF signals
and decode them, they do not digitize the voice on the line for storage on
hard drives in real time, and they do not take stored voice on hard drives
and play them back.

We used Dialogic line circuit boards to connect to POTS telephone lines,
and other boards to connect to trunks, T1, etc., and still other boards
for switching calls. Dialogic is now a subsidiary of Intel. Here is a
typical line circuit board:

http://www.intel.com/network/csp/products/5795web.htm

Intel's web site is very flakey and will try your patience. I wanted to
give you some other links, but I ran out of patience. Finally got this one:

http://www.intel.com/design/network/products/telecom/boards/mediaprocessing.htm

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