Not necessarily, Igor. A good example is the TripleTalk external which is not accessible with Speakup because of their less than satisfactory implementation of the RS232C specification. Igor Gueths writes: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Well Alex, as far as I know an RS232 interface is...An Rs232 interface. > On Sun, Mar 21, 2004 at 08:31:24PM -0500, Alex Snow wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > also is the rs232 interface going to be compatible with software made > > for the current dec expresses?