| ONLY Compatible with CISCO IP phone models: Cisco IP 66821, 6841, 6851, 6871, 6945, 7821, 7841, 7861, 8811, 8841, 8845, 8851, 8851NR, 8865NR, 7942G, 7945G, 7962G, 7965G, 7975G, 8941, 8945, 8961, 9951, 9971 ONLY WORKS FOR SOME SPECIFIC PHONE MODELS LISTED ABOVE. Not compatible with Cisco Spa phone series. For other phones, pls contact us for Compatibility Guide or Advice. | |