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 Features 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) 24 Red/Green indicators 2 Monochrome Displays J100 12 Button Module
