The Plantronics CS50 Electronic Hookswitch for 1000, 6400, & 9000 Series Phones works great with your Plantronics wireless headset and Avaya telephone. This adapter allows you to answer and end calls away from your desk without the use of a handset lifter.

Compatible with the following Avaya phone models:1408, 1416, 1608, 1616, 9404, 9406, 9504, 9508, 9608, 9611, 9620, 9621, 9630, 9640, 9641G, 9650, 9670, 9620L, 2410, 4630, 6416D M, 6424D M

Not sure if this is the right cord for your needs? To check for compatibility with your phone, give us a call at 1-800-HEADSETS (1-800-432-3738)