• Direct connect adapter cord with GN quick disconnect (QD) 4 pin on one end and modular RJ9 connector on opposite end.
• GNN QD to modular plug can be used to plug directly into SOME phones such as NORTEL, POLYCOM,NEC,ALLWORX,AASTRA
• Check your compatibility prior to ordering, the cords are different for each phone application
• Can also use on Smith Corona classic Series headsets, has the same qd
• Jabra GN QD - 8800-01-01