Cisco, Unified, 6901, 6911, 6921, 6941, 6945, 6961, IP, CP-6900-MHS-CG=, CP-6961-CL-K9=, CP-6945-CL-K9=, CP-6941-CL-K9=, CP-6921-CL-K9=, CP-6911-CL-K9=, CP-6901-CL-K9=, Charcoal, Black, Handset, Receiver, Phone Headset, Telephone Handle, Slimline, Standard