Plantronics CS520 Wireless Headset Package for Cisco IP Phones
Cisco IP Phone 7962 CP-7962G *No Power Cable* 76-5 - All Things Surplus
Amazon.com: VoiceJoy Corded Headset with Microphone for Cisco IP Telephone 7940 7960 7970 7962 7975 7961 7971 7960 8841 9941 M12 M22 and All 79xx Series : Electronics
How to Install Plantronics Wireless Headsets with Cisco Phones | Poly, formerly Plantronics & Polycom
Cisco Headset Adapter | PC Headset Adapter for Cisco IP Phones - YouTube