4Call K502QJ25 2.5 Corded Headset with Noise Canceling Mic for Polycom Cisco Linksys SPA Panasonic Gigaset & Zultys Office IP Telephone & Cordless Dect Phones with 2.5mm Headphone Jack

2.5 Corded Headset with Noise Canceling Mic is ideal for direct connect to a 2.5mm headset jack on most basic and business phones such as Polycom Cisco Linksys SPA, Panasonic Zultys AT&T Aastra GrandStream and many many cordless DECT phones with standard 2.5mm Headset Port.
COMPATIBLE PHONE LIST: DO NOT BUY IF YOU CAN NOT FIND YOUR PHONE MODEL IN LIST
Cisco Linksys: CIT200, CIT300, CIT310, CIT400 SPA921, SPA922, SPA941, SPA942, SPA962
Cisco SPA: 303, 501G, 502G, 504G, 508G, 509G, 525G 512G 514G,525G2
Cisco: 7985 Unified IP phones?
Polycom: IP320, IP321, IP330, IP331, SoundPoint Pro SE-220 SE-225
Grandstream:?GXP-2010, GXP-2020, GXP-2100, GXP-2110, GXP-2120, GXP-280, GXP-285,?BT200, BT201 GXP-2000(Version 1.0 higher with 2.5mm Headset Socket)
Panasonic: KX-NT136, KX-NT343, KX-NT346, KX-NT366 ,KX-T 7603, KX-T 7625, KX-T 7630, KX-T7633, KX-T 7636, KX-T 7730, KX-T 7735
Gigaset: ?C610 IP, C620H
Zultys Technologies: ZIP 4x4, ZIP 4x5 IP Phones
Many Many and Cordless Phones with standard 2.5mm Headset jack