Plantronics APT-3 (38349-01) Headsets Hookswitch Control Adapter for CS and Avaya Products

Overview:

Transforms your Avaya Unified IP phone experience through remote answer/end and ring alert.

Features:

For CS Unified IP Phone models CS50, CS55, CS70, CS70N, CS351N & CS361N.
For CS Unified IP Phone models T3 Classic interference adapter TH13, TM13