Update #2

I learned that setting the PC to dial to 76 [apparently the modem station number] does seem to make contact with the Partner modem [Remote card], but I had no luck actually connecting with the external modem, so I switched back to the internal modem, also set at 1200 baud,
PC dial to 76, .........and *Wheee!*

....now the message shows

"Connected at 1200 baud"

Then after about a minute the message changes to:

"Session initiation with the Partner system has failed"

I think I am getting closer -

Any ideas?

Thank you for help-

JW

You only need to know the right button to push-