- Comes with a in-line 2 modes (3 wire sequence for each mode) switch, compatible with most landline, VOIP and SIP phones with RJ9 4-pin modular connectors, good for using in business office customer service, conference calls, phone sales, call center, telephone counseling services, insurance, hospitals, banks, telecom operators, enterprises, etc.
- Single-ear hands-free design, Bendable and 330° rotatable noise-cancelling microphone arm can be adjusted to any talking position, In-line mic mute switch and volume control knob, Soft leatherette ear cushion comfortable for all-day wearing, HD speaker with crystal clear sound quality reception
- Easy to use, plug-and-play, if you cannot hear or be heard, please set the mode on the switch block, try each of the line sequence "Channels" until you get clear sound from the headset
- Compatible Landline Telephone Models: Replacement for Aastra 6731i; Replacement for AT&T CL2940 CL2940BK; Replacement for Avaya 1408, 1416, 1608, 1616, 2410, 4610, 5410, 5621, 6408D , 9504, 9508, 9608, 9608G, 9611G, 9620L, 9641G, 9650C; Replacement for Cisco (CIS) 6000 series, 6841, 7800 series, 7821, 7841, 7911, 7940, 7941, 7942, 7945, 7962, 7965, 7965G, 7975, 8841, 8845, 8851, 8861, 8865, 8945
- Compatible Landline Telephone Models: Replacement for Clarity E814cc; Replacement for ESI 40sbp; Replacement for Digium D62; Replacement for Grandstream GXP1625, GXP1630; Replacement for Intecom ITE 12SD; Replacement for Inter-Tel 8520; Replacement for NEC Aspire, Dterm, DT300 series, ILV series, etc.
Compatible with IP telephone models:
Replacement for Aastra: 53i, 55i, 57i, 57iCT, 390, 470, 480, 480e, 480i, 2465, 2564, 6737i, 6753i, 6755i, 6757i, 8004, 8009, 8314, 8324, 9009, 9112i, 9133i, 9143i, 9316cw, 9417cw, 9480i
M4000, M4020, M5208, M5209, M5216, M5317, M7900, M8001, M8003, M9009, M9516
Replacement for Alcatel-Lucent: 4004, 4010, 4018, 4019, 4020, 4022, 4035, 4037, Temporis 380, IP200, IP800
Replacement for Ascom: Berkshire 200, 400, 600, 800, SD30, MR30, MR51, MR61
Replacement for AT&T: CL2940, CL2940BK
Replacement for ATCOM: AT800, AT810, AT820, AT840, R1, R2, R3, R4
Replacement for Avaya, Lucent: 1220, 1230, 1408, 1416, 1608, 1608i, 1616, 2400, 2410, 2420, 4406D , 4412D , 4424D , 4424LD , 4610, 4620, 4621, 4622, 4624, 4625, 4626, 4630, 5410, 5420, 5601, 5602, 5610, 5620, 5621, 5625, 6210, 6211, 6218, 6219, 6220, 6221, 6402, 6402D, 6408, 6408 , 6408D , 6410D M, 6414, 6416, 6416D M, 6424, 6424D M, 8101, 8102, 8110, 8400, 8403, 8405, 8406, 8410, 8410D, 8434DX, 8503, 8510, 8520, 8528T, 9404, 9406, 9408, 9410, 9504, 9508, 9608, 9608G, 9611G, 9620, 9620L, 9621G, 9630, 9630G, 9640, 9640G, 9641G, 9650, 9650C, DT1, DT3, DT5, J139, J169, J179
Replacement for BT Converse 220, 225, 300, 320, 325, 420, 425, 1100, 1200, 1210, 1220, 1230, 1300, 1400, 2025, 2100, 2300, 2465, 2564
Replacement for BT Paragon 450, 650, i2002, i2004 (not for i2400 phase II, i2004 POE phones) NT8B20, NT8B30, NT8B40, NT8B50, NTZK23AA, AB (M2216), ACDI
Replacement for Cable & Wireless: CWB 100H, 200H, 500, 600
Replacement for Cisco (CIS): 6000 series, 6821, 6841, 6851, 6911, 6921, 6941, 6945, 6961, 7800 series, 7821, 7841, 7861, 7902, 7905, 7905G, 7906, 7906G, 7910, 7910 SW, 7911, 7912, 7931, 7931G, 7940, 7940G, 7941, 7941G, 7942, 7942G, 7945, 7945G, 7960, 7960G, 7961, 7961G, 7962, 7962G, 7965, 7965G, 7970, 7970G, 7971, 7971G, 7972, 7975, 7975G, 7985G, 8000 series, 8811, 8841, 8845, 8851, 8861, 8865, 8941, 8945, 8961, 9900, 9951, 9971
