The Key-based Expansion Module provides an additional 22 keys for any combination of lines and features, which can be added to M3904 and M3905 models. Up to two Key-based Expansion Modules can be added to each set for a total of 44 additional keys.
Fully remanufactured to look and work like new. One year warranty.
Compatible only with M3904, M3905 Nortel Meridian digital phones. Requires either a single or double footstand, sold separately. (Single footstand for one KEM unit, double footstand for two KEM units).
Telephone sold separately.
Additional part numbers: NTMN37, NTMN37AA, NTMN37AA66, NTMN37AA70, NTMN37BA, NTMN37BA66, NTMN37BA70, NTMN37BC, NTMN37BC66, NTMN37BC70, NTMN37BA23
