Cisco 6851 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 6851 Specifications

General

Network Protocols	SIP
Speakerphone	Yes
Bluetooth	No
Wi-Fi	No
USB Port	No
Display	3.5 inch grayscale display (396 x 162 pixels)
Ethernet	10/100 Ethernet
PoE	IEEE 802.3af
Audio	Wideband audio
Line Keys	4
Headset Port	RJ9
Supported Codecs	G.711, G.722, G.729, iLBC
Weight	0.9 kg