Hi mcmahan.
I manage several Octel 100/200/300 from a single PC running Windows 2000 (or '98) just using Hyperterminal.(or Procomm).
Set the datainterface to 9600 bits/sec, 7 bits, even parity and 1 stopbit.
You connect using a modem connected to the PC that is capable of "bell mode".
Using ATDTxxxxxxxxx,,,,###5 to dial the Octel 100, where xxxxxxxxx is the DDI number of the voice mail system, you will be connected to the remote at a speed of 9600 baud.
The ,,,'s are to indicate a pause.
To test if the modem of the Octel 100 is active just call the voice mail system and press ###5. If a modem tone is heard, then the modem is active.
Best regards from doktor.