Telephone Headset with RJ9 Jack for Phone Mono with Noise Cancelling Microphone Plus Extra 3.5mm Connector for Mobiles Compatible with Avaya Nortel Polycom and iPhone Samsung : Amazon.co.uk: Electronics & Photo
Single Ear Headset for Nortel T7316E Phones
Nortel Headsets | Headsets for all models of Nortel Phones - PMC Telecom
Wantek Corded Telephone Headset Mono w/Noise Canceling Mic for ShoreTel Plantronics Polycom Zultys Toshiba NEC Aspire Dterm Nortel Norstar Meridian Siemens ROLM Packet8 Landline Deskphones(F600S2) : Amazon.co.uk: Electronics & Photo
Nortel Mobile USB Audio Adapter Kit - Office Phone Shop