The Plantronics CS50 Electronic Hookswitch for Avaya-Tenovis Phones enables a wireless headsets user to place or receive a call without the need to lift the handset, thereby eliminating the need for a mechanical device such as the Plantronics HL10 handset lifter.

It is compatible between your Plantronics CS50 and the following Avaya/Tenovis phones:

• T3 Classic with Interface Adapter
• TH13
• TM13