Avaya Nortel Compatible Plantronics HW251N VoIP Direct Connect Headset Bundle - Avaya | Nortel 1120e, 1140e, 1150e, 1165e IP Phones Bundle of 2 items - Plantronics HW251N Headset and Avaya/Nortel compatible telephone interface cable Compatible Avaya/Nortel IP Phones: 1120e, 1140e, 1150e, 1165e Ultra Noise-Canceling microphone filters out background sound Quick Disconnect - Allows for easy disconnect from phone without removing headset Plug-n-Play easy of use, Premium Plantronics Wideband Audio