[Asterisk-Users] Voice Modem + Soundcard Driver

[Dan]

Hi,

I have an USB voice modem which does not need to be connected to the
soundcard in order to build an answering machine.
It appear in the system as another sound card.
I have tested a free Answering machine application and it works great.
The modem is very cheap (paid around 25 USD for it) and has linux drivers,
including the source files:
http://www.smlink.com/products/SmartUSB56.htm for description
and
http://www.smlink.com/download/Linux/slmdm-2.7.14.tar.gz
for the linux driver, including source files.

Can this be used as a FXO interface for Asterisk?

Best regards,
Dan

----- Original Message ----- 
From: "Mathew Frank" <mathewfrank at qushi.com>
To: <asterisk-users at lists.digium.com>
Sent: Tuesday, June 03, 2003 10:47 AM
Subject: Re: [Asterisk-Users] Voice Modem + Soundcard Driver


> > The problem with using Voice Modems is that they fall into two
categories:
> >
> > 1) Hardware Modems which only have half-duplex transmission of voice
> > 2) Soft/Win/Lin modems which are proprietry and don't have asterisk
> drivers
>
> or 3 - full duplex "real" voice modems such as produced by Banksia in
Sydney
> which have been available for years for IVR systems for which only a
> single-duplex channel is available in Asterisk.
>
> > 2 Phone lines
> > 2 Banksia Wave SP 336 Modems - these have 3.5mm female jacks for
> speaker/microphone
> > 1 Full Duplex Soundcard
> > 4 3.5mm mono male-male audio cables
> > 2 3.5mm stereo male -> 3.5mm female left + 3.5mm female right adapters
> > 1 Linux Box with 2 serial ports and spare PCI slot for Full Duplex sound
> card.
> > Asterisk
> > Programmer
>
> I had concidered such an approach, till I remembered the iNTRA modems
> mentioned above.   There is actually a question re legality of wiring the
> sound card to the modem - or even audio-coupling to do the same according
to
> the wording of the rules AFAIK.   Anyway I did concider your suggestion
and
> when I posted it a year ago got in an argument with a fellow poster who
> missed my point entirely till the point was lost.
>
> Mathew
>
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