Pat,
Fired up the Nam w/4.0. Reset data base... Worked for a little while then the weirdies started. Get the PWD prompt for F983, log for 981, two digit ext No.s available for the attendant in 982 (three digit system) Pushing the NAM through a DS30 station adapter. Pair came in working condition from a DR5 modular.
Non of the possible default password/mailbox combos that I can think of work.
So now with less hair, I'm going to try a copper NAM 1.
Cheers
Phm