This RJ9 headset with noise canceling mic is compatible with following IP Phones/Office Phones(Including but not limited)
Akuvox :SP-R50P, SP-R52P, SP-R53P, SP-R55P,SP-R59P, SP-R55G, SP-R59G,SP-R63G, SP-R67G, VP-R47P, VP-R49G, R15P
ATCOM:A10/A11,A16,A21,A26,A41,A48,A68,A10W,A20W/A20WAC,A41W,A48W/A48WAC,A68/A68WAC
Cisco Unified IP Phones (no headset jack):7811,7902(G), 7905(G), 7906(G), 7910(G), 7911(G) & 7912(G)
Dlink:DPH-150S
Escene:GS330,GS292,CC800,ES620,ES410,ES330,ES320,ES310,ES290,ES282,ES280,ES220,ES206,ES205
Grandstream:GXP1200,GXP1400,GXP1405,GXP1610,GXP1625,GXP2020,GXP2100,GXP2110,GXP2120,GXP2124,GXP2130,GXP2140, GXP2160,GXP2170
Huawei:ET325,ET525
Sangoma:S300,S400,S500,S700
Sn: 320, 360, 370, 710, 720, 760, 820, 821, 870
Yealik:SIP-T19P,SIP-T20P,SIP-T21P, SIP-T22P,SIP-T23P, SIP-T23G, SIP-T26P,SIP-T27P, SIP-T28P, SIP-T29G, SIP-T32G, SIP-T38G,SIP-T41P,SIP-T42G,SIP-T46G,SIP-T48G,SIP-T21PE2,SIP-19PE2