Hi Ralph, (thanks for the reply)
The APC wasn't changed out, I was told by Mitel that it wasn't field replaceable when installed inside a 3300 as ours is. That's why I had to "move" the MAS/Nupoint to an "external" server (the Dell 2850). Originally, the MAS/NUpoint was installed on the 3300 on the APC system, but not now. The Nupoint is supposed to pick up from the outside on "6799" but when I dial this internally, it just rings and rings and rings. I don't know exactly what the 6001 does but the phone techs had me dial it and the Nupoint system answers as it did originally.
Mike....