START HERE:
Your best bet is to take a look at your phone, locate the headset port, and then visit our Cisco compatible headset section to find a headset you like. Cisco phones have either a 2.5mm pinhole headset port or a modular headset port. We've taken the guesswork out of finding a compatible headset for your particular Cisco phone model by pairing our headset tops with the compatible lower cords, broken down by telephone model.
These bundles include a Direct Connect headset & compatible bottom cable for the Cisco "Headset-Ready" phone models listed below. Cisco Models: 521G, 524G, 7985, 7985G, SPA 303G, SPA 501G, SPA 502G, SPA 504G, SPA 508G, SPA 509G, SPA 512, SPA 514, SPA 514G, SPA 525, SPA 525G, SPA 921, SPA 922, SPA 941, SPA 942, SPA 962
CLICK HERE
These bundles include a Direct Connect headset & compatible bottom cable for the Cisco "Headset-Ready" phone models listed below. Cisco Models: 6821, 6841, 6851, 6921, 6941, 6945, 6961, 7821, 7841, 7861, 8811, 8841, 8845, 8851, 8861, 8865, 8941, 8961, 9951, 9971, 12 VIP, 30 VIP, 7931, 7931G, 7940, 7940G, 7941, 7941G, 7942, 7942G, 7945, 7945G, 7960, 7960G, 7961, 7961G, 7962, 7962G, 7965, 7965G, 7970, 7970G, 7971, 7971G, 7975, 7975G, 8945, 8945G, Cius, CTS500
Following these steps will ensure your office telephone headset is properly connected and configured for use with your Cisco phone.