[comp.dcom.telecom] PC Voice Mail Card Instruction Set Needed

"R. Steve Walker" <gt5302b%prism@gatech.edu> (04/06/90)

I am trying to find out the instruction set used to control PC Voice
Mail cards.  The one I have is sold by PC Systems, but I think that
most of them are manufactured by the same company.  Does anyone know
how these cards work - voice digitization - or what the command set
is?  If not, how can these commands be intercepted?  Thanks.