Callez RJ9 Phone Headset with Noise Cancelling Mic & Mute Switch, Corded Telephone Headset for Cisco 8851 8845 8841 8811 7965 7962 7945 7941 7841 7821 6941 6851 Plantronics M12 Office Landline Phones

Cisco IP Phones Compatibility This wired workplace phone headset is ONLY COMPATIBLE with Plantronics M10, M22, m12 and mx10 Amplifiers or Some Specific CISCO IP Phones designs 7931G 7940 7940G 7941 7941G 7942 7942G 7945 7945G 7960 7960G 7961 7961G 7962 7962G 7965 7965G 7970 7970G 7971 7971G 7975 7975G 6821 6841 6851 6861 6871 6921 6941 6945 6961 7811 7821 7841 7861 8811 8841 8845 8851 8861 8941 8945 8961 9951 9971. IT ONLY WORKS FOR SOME SPECIFIC CISCO PHONE MODELS LISTED IN DESCRIPTION(consist of however not restricted ). Not suitable with Cisco Spa phone collection.

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