Cisco 7821 Administration Guide

Figure 9: Tab Location
To remove the phone and mounting plate from the wall bracket, you must disengage these tabs.
Before you begin
You require two screwdrivers or metal rods.
Procedure
Step 1 Push the screwdrivers into the left and right holes in the phone mounting plate approximately 1 in. (2.5 cm).
Step 2 Lift the screwdriver handles up to push down on the tabs.
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
98
Hardware and Accessory Installation
Remove the Phone from the Non-Lockable Wall Mount for 7811

Cisco 7821 Specifications

General

Resolution	396 x 162 pixels
Lines	2
Speakerphone	Yes
Display	3.5-inch (89 mm) monochrome display
Ethernet Ports	2 x 10/100 Ethernet ports
Power	IEEE PoE Class 1
Headset Port	Yes
Protocols	SIP
Audio Codecs	G.711, G.722, G.729, iLBC
Weight	0.9 kg (1.98 lb)