The Avaya JBM24 Button Module extends the number of call appearances and feature buttons on the Avaya J169 or J179 IP phones.? Each button module provides 24 additional lines for incoming calls, outgoing calls, autodialling, and calling features.
Part Number: 700513570
Add up to 3 Button Modules per J169 or J179 phone
Attaches to right side of the phone
Powered by the J169/J179 (Increases PoE to class 2)