Poly Blackwire 3220 Stereo USB-C Headset + USB-C/A Adapter Video Communications the cord connecting the phone

the cord connecting the phone with the handset or headset is anything but standard as each telephone manufacturer has its own wiring code

Product Model: MX522adhe

Product Name: ZVC800 Video Conference Equipment

Built-in 4 x 1GbE ports with 10/25 GbE expansion option

Poly Blackwire 3220 Stereo USB-C Headset + USB-C/A Adapter Video Communications the cord connecting the phonePoly Blackwire 3220 Stereo USB C Headset + USB C A Adapter Freedom to work your way The Blackwire 3200 Series provides a quality audio experience in a headset that's built for enterprise needs. With a sleek design and flexible microphone boom for a customizable fit, what's not to love? Poly signature audio quality Experience the high quality audio you expect from Poly with a headset that offers PC wideband, a noise canceling mic, and hi fi stereo