Plantronics APP-51 Electronic Hook Switch Cord (38439-11)
The Plantronics APP-51 is an electronic hook switch cord for use with Polycom SoundPoint IP telephones and Plantronics wireless headset solutions.
Connects your SoundPoint IP telephone to Plantronics CS500, Savi 700, and Savi Office series wireless headsets
Provides remote one-touch answer/end call control for your wireless headset
Eliminates the need for an HL-10 handset lifter