Review on 🔌 Plantronics APD-80 EHS Adapter (87327-01) - Enhanced Connectivity for Headsets by Sean Ceo

READ FIRST! I have a Grandstream GXP2140 phone. This cable alone does not give you full EHS functionality to remotely answer/hang up from a headset. You will also need to purchase Plantronics cable 85638-01. Plantronics 85638-01 REPLACEMENT CABLE ASSEMBLY MODULAR STRAIGHT Useless but required. I had to do some digging and finally found a compatibility guide on the Grandstream website. , you will find that it only works one way. You can press the headset button on your phone to activate the Plantronics headset. The other direction doesn't work.