Works for Phones:
AltiGen IP805
Cisco 7902, 7905, 7905G, 7906G, 7910, 7910+SW 7911, 7912 IP Phones
Cortelco Fanvil C58, C58P C62, C66
Grandstream GXP14XX, GXP1400 GXP1405 GXP1450 GXP2124, GXP2120, GXP2140 GXP2140 GXP2160 GXP2110, GXP2100, GXP2020, GXP2010, GXP1200, GXP280, GXP285, GXV3005, GXV3006, GXV3240 GXV3275 IP Phones
HuaweiET325,ET525
Panasonic KX-T Series phones such as: KX-T2260, KX-T2310, KX-T2315, KX-T2365, KX-T2368, KX-T7220, KX-T7230, KX-T7330, KX-T7433, KX-T7625, KX-T7630, KX-T7633, KX-T7636, KX-T7665, KX-T7720, KX-T7730, KX-T7740 and KX-T7750
Snom 300, 320,360,370,710, 720,760, 820, 821, 870
Yealink SIP-T19P T20P, T21P, T22P, T26P, T28P, T32G, T41P, T38G, T42G, T46G, T48G

• Only works for some specific phones. Please see compatible phone models list in description below
• All functions on headset and phone would function same
• Convert smartphone headset to 4P4C RJ9/RJ10 plug for office telephones.
• Please Check the Compatible Phones list before your order.DO NOT BUY THE ITEM IF YOU CAN¡¯T FIND YOUR PHONE MODEL IN LISTS, CONTACT US FOR ADVICE

Only works for some specific phones. Please see compatible phone models list in description belowVoiceJoy