Headset for Avaya J139 J169 J179 IP Phones Great for Office Contact Centre Home worker Noise Cancelling Mic - EAR510D + QD009 Double Ear : Amazon.co.uk: Electronics & Photo
Telephone Headset with Noise Cancelling Microphone for Call Center Office, Including RJ9 and 3.5mm Connectors for Landline Deskphone Cell Phone PC Laptop, Work for Polycom Avaya Nortel Aastra: Amazon.co.uk: Electronics & Photo