basspro,
They mean the GE UserID & Password. Our userid is in the format XXX99999 and password is 8 chars also, mixed char/numbers.
Some of these comm. problems can be hard to diagnose. You may need to add code (if you haven't already), to detect which MAJ/MIN return codes you are getting from the comm. session. These should be in the ICF programming guide online.
One other thing to try, just to be sure - try having the modem call your office phone or cell phone, just to see if it's successfully dialing. I've been bitten by something as simple as needing a '9,' to get out, but only after I'd spent a few hours pouring over what I thought was a programming problem. Also, depending on which model of 7855 you have, isn't there a 'SYNC/ASYNC' button on the modem - make sure it's set properly.
K. Hood