Cisco 7821 Administration Guide

Figure 28: Disengage Tabs
Step 3 Press firmly to disengage the tabs and move the phone up at the same time to release the phone from the wall
bracket.
Adjust the Handset Rest
If your phone is wall-mounted or if the handset slips out of the cradle too easily, you may need to adjust the
handset rest to ensure that the receiver does not slip out of the cradle.
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
115
Hardware and Accessory Installation
Adjust the Handset Rest

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)