The Mitel 5448 Programmable Key Module provides 48 additional feature keys for a Mitel 5220 IP Phone. The Mitel 5448 can be programmed as feature keys, speedcall keys, Direct Station Select keys, or line appearance keys. Each key has a Line Status Indicator that works the same way as those on the associated telephone. The keys can be programmed through the telephone set.
Mnfr Part #: 50002823
Telephone in photo is sold separately
Includes Interface Module P/N 50002825
Does not include Mitel IP Power Pack