Headset Buddy Adapter: PC Headset to CISCO Phone Jack, RJ9/RJ10 to Dual 3.5mm Adapter, Not RJ11
Price 19.95 - 21.95 USD
Use PC Headset with CISCO Phone RJ9/RJ10/RJ22 Headset Jack * PC Headsets Better & Cheaper Than Cisco Phone Headsets * Works With Both Mono & Stereo Computer Headsets * Not for RJ11 Jack Which is Wider Than Your Handset/Headset Jack * Works With Cisco-based Phone Headset Jacks - Avaya, Shortel, Etc.