Cisco 6821 Administration Guide

Display the Phone Information Window 204
View the Phone Status 204
View the Status Messages on the Phone 205
View the Network Status 205
Display Call Statistics Window 206
Call Statistics Fields 206
View the Customization State in the Configuration Utility 208
Cisco IP Phone Web Page 209
Info 209
Status 209
PRT Status 215
Debug Info 216
Download Status 216
Network Statistics 217
Voice 222
System 222
SIP 231
Provisioning 241
Regional 253
Phone 264
Extension 275
User 292
Att Console 297
TR-069 300
Call History 302
Personal Directory 302
Troubleshooting 303
CHAPTER 13
General Troubleshooting Information 303
Startup Problems 305
Cisco IP Phone Does Not Go Through the Normal Startup Process 305
Phone Displays Error Messages 306
Phone Cannot Connect Using DNS 306
Configuration File Corruption 306
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
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Contents

Cisco 6821 Specifications

General

Resolution	320 x 240 pixels
Speakerphone	Yes
Headset Port	Yes
Protocols	SIP
USB Port	No
Wireless	No
Bluetooth	No
Video Support	No
Conference Capabilities	Yes
Wall Mountable	Yes
Display	3.5-inch grayscale
Ethernet	10/100 Ethernet
Line Keys	2
PoE	IEEE 802.3af Power over Ethernet (PoE)
Codecs	G.711, G.722, G.729, iLBC
Weight	2.0 lb (0.91 kg)