Connects Avaya Headset top to Most Single or Multi-Line Phones - 1-Button Select between Headset or Handset - Quick-Disconnect Headset Plug End - Separate Incoming/Outgoing Volume - SoundGuard Plus and Call Clarity - Modular Connection - Compatibility: For Use with "H" Series Headsets - Product Type: Headset Adapter ...

Northern Telecom M2250 console - Northern Telecom Meridian SL-1 Digital Phones M1250 Consoles - Plantronics H-series Headsets - Product Type: Handset Amplifier - -...

Just plug the P10 into your operator console, PBX, or ACD, then plug in your headset. The P10 delivers Plantronics famous sound quality and ease of use. Its volume and automatic gain controls let you adjust incoming calls to a listening level that's comfortable for you. Comes with handy Quick Disconnect feature and 10-foot coil cord....