Item # HA10296
Compatible with: Cisco SPA921, 501G, 502G, 504G, 508G, 509G, 525G, 7920, 7921 7921G, 7929, Powercube
Compatible with: Linksys SPA 921, SPA 922, SPA 941, SPA 942, SPA 962
Compatible with: Polycom SoundPoint IP 320, 321, 330, 331
Some desk phones have a 2.5mm port but don't have an RJ9/RJ11 port. Add this headset adapter and you'll be able to plug a wired or wireless headset with an RJ9 cord to work with your office phone.