AMBE voice compression framing
 

I am investigating using a DSVD modem for remote control.
I have been told that conventional DSVD's have rather poor
audio quality. The new AMBE chips promise higher fidelity
voice compression. Does anyone know of a DSVD that uses
these chips? How hard would it be to interface an AMBE chip
to a conventional (non-DSVD) modem? Apparently, the chip
requires an external circuit to do framing, so it is not serial
port ready. Anyone have info on how to do framing?

BTW, I only have a 28.8k dial up connection to work with.
I would like to avoid getting a second phone line.

Rick Karlquist N6RK