Not in any particular order:

o  Support for additional soundcards.

o  Add 2400 bps LPC coder.

o  Add 18400 bps ADPCM coder.

o  Large model under DOS.

o  Turn documentation into a user manual.

o  Finish Macintosh port (Gil Spencer).

o  Windows '95 port (volunteeers?)

o  Ephemeral key exchange.

o  Prevent startups if pass phrases don't match.

o  Fallback to slower coders if modem speed drops

o  Modem initialization string is not sent in answer mode.  Should it be?

o  Some modems return "CARRIER" instead of "CONNECT" as there connect
   string.  This should probably be dealt with by allowing the user to
   override the default message strings searched for in the modem
   control routines with values from the config file.

o  Consider replacing the "ATS0=1" method of handling auto-answer with
   code that waits for a "RING" message and then sends an ATA to the
   modem.

o  Try APF technique on sp3bits.c; if successful, also try it on sp2bits.c
   See p305 of Jayant & Noll

o  GUI wrapper program (Tk/Tcl, Visual Basic, etc)
