Poly APV-66 Electronic Hook Switch for Avaya EU-24 and Savi CS500 Series Brand_Foredge which is a spring steel

which is a spring steel clip that is compressed and inserted into a square hole in the rack or cabinet

Microphone: Integrated in-line microphone

we have been doing so for over 18 years

for higher efficiency

Poly APV-66 Electronic Hook Switch for Avaya EU-24 and Savi CS500 Series Brand_Foredge which is a spring steelPoly APV 66 Electronic Hook Switch for Avaya EU 24 and Savi CS500 Series The Poly APV 66 is an electronic hook switch cable designed to connect compatible Poly and Plantronics wireless headset systems to selected Avaya desk phones through the telephones EU24 interface. It enables remote answer and end call control from the headset, allowing users to manage desk phone calls while away from their desks without requiring a mechanical handset lifter.