[Asterisk-Users] Modem => Serial ?

[Steven Critchfield]

The problem with the few softmodem drivers I've dealt with is that parts
of the driver are _NOT_ in source form. The parts that are in source
form are basically a serial interface to the dsp library that does
direct hardware access as it would have kernel level privs from having
been called from inside the kernel. 

I'm interested in documenting a dsp library that is available for a
software modem and seeing if it could be a resource for asterisk to
create a modem interface. But this is a project probably for the
fall/winter.

On Wed, 2003-06-04 at 05:38, Dan wrote:
> With a software modem, you cannot bypass AT commands and directly acces the
> hardware for voice applications, as you have the source code for the modem
> driver himself?
> 
> BR,
> Dan
> 
> 
> > The problem is using the AT command set, not whether or not serial
> > communications can carry voice. Remember that T1 is just a really fast
> > serial line.
> >
> > The AT command set is a remnant of low power computing. You issue a
> > command to get started with voice mode. Then you set it in record mode,
> > and look to see if there is incoming audio. Then you issue a command to
> > send audio when you have some in your queue.
> 
> 
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-- 
Steven Critchfield <critch at basesys.com>