Microphone NoiseCancelling Headphone HandsFree Quick Disconnect with RJ9 Cables for Yealink Polycom Avaya Unify Vtech Grandstream Mitel Phones

Compatibility: This headset is  compatible with most IP Phones except Cisco Phone   1.
RJ09 (01) Cable  Avaya: 1110IP 1210IP 1220IP 1230IP 2010 2020 2030 series 2030-NL 2040 465 621xx, 64xx, 81xx, 84xx 
Aastra: 480iP 480e 480i 53i SIP 55i SIP 57i SIP 7147a 7187a 8004 8009 8314 8324 8417 9009 9216 9417CW, Forum 515 520 530 535, i760 ITE760 M355 M5760 M6320 M740, Office 6725IP/70/70IP/80/80IP, 42xx, 53xx, 67xx, 6863i 6865 9112i 9133i 9480CT 9480i 8000i  3-Com: 3100 Entry Phone/3101 Basic Phone/3102 Business Phone/3C10401spkrb Basic Phone/3C10402B Business Phone/NBX 100
Business Telephone  Mitel: 2150 2250 3000 4001 4110 4120, 5540IP 6863i 8568 9048 7147 7187, MiVoice 42xx, 53xx, 6710 6940IP 8528 8568, Superset 16E 24E 401 700, SX2000, TX14
TX4  Digium: D40 D45 D50 D60 D65 D70 D80  NEC: Elite DTU-8-1 Elite DTU-8-2 Elite DTU-16-1 Elite DTU-16D-1 Elite DTU-16D-2 Elite DTU-32-1 Elite DTU-32D-1Elite DTU-32D-2  ShoreTel: IP100 IP212K IP230 IP265 IP530 IP560 IP565 IP655 IP420 /480/480G/485G/560G
  Toshiba: DKT 1010 1020 SD 20xx, 3512 F-SD DT-16i/ DT-16 LDPF/LDIPF, DKE 2000 3000 series, DK 3000 series
DK D4000 ACD Console  Polycom: SoundPoint ip 300 301 335 400 430 450 500 501 501SIP 550 550SIP 560 600 601 601SIP 650 670 670SIP, VVX 101 201 300 301 310 311 400 401 410 411 500 501 600 601, CX 300, CX 600 & 700 
Nortel: 1110, 1120, 1140 1165 1210, 1220, 1230i2002 (NTDU91), i2004 (NTDU92) i2007 (NTDU96)
  Unify: OpenStage5, 10, 20, 30T, 40, 40T
  Sangoma: S300
S500 S700  Fanvil: X1X1P X210 X2 X3S X4 X5 X5S X6 X7 X7C   2.
RJ09 (03) Cable  Grandstream: GXP1160/1165/1200/1400/1405/1450/1610/1630/1760//1780/2130/2160/2170/2200/GXV32XX/GXV3370
Yealink: T19/T20/T21/T22/T23/T26/T27/T28/T29/T32G/T38G/T41G/T41S/T42/T46/T48G/T48S/T49/T52S/T53/T54S/T55A/T56A/T58A