Double or triple your speed-dialing power with a Key Module. The Key Module is a sidecar module that instantly adds 16 programmable keys with LEDs to your Optiset E Advance or Advance Plus phone. Two latches and a small RJ45 cable connect the Key Module to the telephone. A second RJ45 connection lets you add additional Key Modules – up to four keyboard modules for a maximum of 29 extensions and 81 keys. Ideal for busy, phone-intensive users who need one-button speed dialing. Available in gray or black.

Requires Non-Routine Software Change.