Cisco Wall Mount for IP Phone CP-7800-WMK=,BlackThe Cisco Wall Mount Kit for IP Phone 7821 and 7841 allows the office phone to be conveniently affixed to the wall in common areas such as lobbies, cafeterias, and conference centers. This phone wall mount kit is designed for installation in drywall. To attach the wall mount kit to concrete, brick, or other hard surfaces, the appropriate screws and anchors must be obtained separately.