Intelus/NEC laptop

I recently acquired a laptop that appears to be an NEC PC-8201 with a label of a company named Intelus on the front where the PC-8201 label would be. There is also a serial number label on the back that lists the address of Intelus as in Rockville, Maryland. In addition, it has a miniature connector labeled phone on the back in place of the second SIO connector (maybe the unit has an internal modem? I haven't opened it up to check), and it has an additional small removable panel on the back that provides access to an edge-card connector on the motherboard. My machine has nothing plugged into this connector. The machine fires up showing BASIC, TELCOM, and TEXT programs in ROM, and the BASIC program even says PC-8201 Basic, verson 1.1. The machine is in all other respects (keyboard, display, battery pack, ROM access, and external connectors) identical to my PC-8201. Is anyone familiar with this machine?