Headsets that can be used with both desk phone and computer (and Cell phone too) - HeadsetPlus.com Plantronics, Jabra Headset Blog
INNOTALK Wireless Headset Compatible with Polycom VVX300, VVX310, VVX400, VVX410 - Desk Office Phone Call Center Wireless Headset with EHS Cord Bundle for Remote Answering Wireless Headset(Pioneer)
Amazon.com: Call Center Headset with Noise Canceling Microphone, Duo Telephone Headset with RJ9 Jack & 3.5mm Connector for Landline Deskphone Cell Phone PC Laptop
Telephone Headset with Noise Canceling Microphone, Mono Call Center Office Headset with RJ9 Jack & 3.5mm Connector for Landline Deskphone Cell Phone PC Laptop, Work for Polycom Avaya Nortel
The Best Headsets and Headphones for Your Home Office | PCMag
Headsets that can be used with both desk phone and computer (and Cell phone too) - HeadsetPlus.com Plantronics, Jabra Headset Blog
Poly Voyager 4320 Uc Wireless Headset- Headphones With Boom Mic - Connect To Pc / Mac Via Usb-a Bluetooth Adapter, Cell Phone Via Bluetooth : Target