This RJ9 Office telephone headset is a 4-Pin RJ9 Crystal Jack Headset, it is ONLY compatible for CISCO landline phones, NOT for Smartphones and Computers.
Attention: This RJ9 Phone Headset doesn’t come with 2.5mm jack, 3.5mm jack or USB jack.
Please read the compatibility information carefully before purchasing. For other phones, please Consult us for Compatibility Guide or Advice.
Compatible Landline Phone List:
Cisco IP Phones:
7920, 7931G, 7940, 7940G, 7941, 7941G, 7942, 7942G, 7945, 7945G, 7960, 7960G, 7961, 7961G, 7962, 7962G, 7965, 7965G, 7970, 7970G, 7971, 7971G, 7975, 7975G, 7811 7821, 7841, 7861
6821,6841, 6851, 6861, 6871, 6921, 6941, 6945, 6961, 8811, 8841, 8845, 8851, 8861, 8941, 8945, 8961, 9951, 9971, 12VIP, 30VIP, 8865, CTS 500
Plantronics Amplifier: M10, M12, M22 & MX10 Amplifiers
Panasonic: KX-UTG200B, KX-UTG300B
NOTICE: NOT compatible with Cisco Spa phone series and Cisco 7902, 7905, 7905G, 7906, 7906G, 7910, 7910+SW, 7911, 7911G, 7912 IP Phones.