Check to here for a description and to see what it's comparable with
Wantek Corded Telephone Headset Mono w/Noise Canceling Mic for ShoreTel Plantronics Polycom Zultys Toshiba NEC Dterm Nortel Norstar Meridian Siemens ROLM Packet8 Landline Deskphones(F600S2) https://a.co/d/35ihr5w
