[Asterisk-Users] Modem as PSTN interface?

[Steven Critchfield]

On Sun, 2005-02-20 at 22:14 -0600, Jon Gabrielson wrote:
> I believe that is basically what the generic t100p is.
> Also, several other voicemodems are already supported
> by asterisk.  To my knowledge they are all FXO ports.
> I don't believe there are any modems that can provide
> FXS ports.  If someone knows of one, I would be interested
> in knowing about it.

Nope, a t100P is a T1 span. Nothing generic there.

The voicemodems that are "supported" are winmodems that happen to behave
similarly enough to the X100P card that they can be dealt with the same
way. Since winmodems move all the DSP work into the main CPU, it means
they are mostly simple PSTN digitizer. Instead of hooking DSP code to
the digitized audio path, asterisk just uses the audio.

Trouble is, most winmodem companies keep the implementation details very
quite. If you can't get that data you can't get it to work.

Next trouble is that no one here gets any benefit from your cheapest way
to play route. In fact your cheapest way to play is a detriment to our
community as you are likely to have a very bad experience and either bad
mouth the software because of your experience, or you may never get past
the basic user position and are just an occasional support drain. All
this without having contributed back to the community. There is a chance
you might move beyond that point, but it isn't likely.

So try and make a convincing case for anyone to beat their head against
the wall to support a low port density device that is unlikely to be
used by a large portion of the community and is not going to benefit
either the writer or the main supporters of asterisk.
-- 
Steven Critchfield <critch at basesys.com>