Cisco 8821 Administration Guide

Access Firmware Version 93
Firmware Version Information 93
Statistics Available from the Phone Web Pages 94
Access Web Page for Phone 94
Device Information Web Page 95
Network Setup Web Page 96
Network Web Page 99
Console Logs Web Page 100
Core Dumps Web Page 101
Status Messages Web Page 101
Debug Display Web Page 101
Streaming Statistics Web Page 101
CHAPTER 8 Maintenance 105
Reboot the Phone 105
Phone Reset 105
Reset the Phone to Factory Defaults from the Phone Menu 105
Reset the Phone to Factory Defaults from the Phone Keypad 106
Reset the Network Settings 106
Reset the Security Settings 106
Voice Quality Monitoring 107
Voice Quality Metrics 108
Voice Quality Troubleshooting Tips 108
CHAPTER 9 Troubleshooting 111
General Troubleshooting Information 111
Phone Does Not Go Through the Normal Startup Process 113
Connection Problems 114
No Association to Wireless Access Points 114
Access Point Settings Mismatch 114
Authentication Failed, No AP Found 115
EAP Authentication Failed Message 115
AP Error - Cannot Support All Requested Capabilities 115
Phone Does Not Register with Cisco Unified Communications Manager 116
Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager
vii
Contents

Cisco 8821 Specifications

General

Wi-Fi	Yes
Ethernet LAN	No
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	3.0+HS
Security algorithms	EAP-FAST, EAP-TLS, PEAP, WPA
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11d, IEEE 802.11e, IEEE 802.11g, IEEE 802.11n, IEEE 802.11r
USB 2.0 ports quantity	1
Voice codecs	G.711, G.711a, G.722, G.729, G.729ab, iLBC
Volume control	Digital
Product type	IP mobile phone
Product color	Black
Input frequency	50 - 60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	0.2 A
Display diagonal	2.4 \
Display resolution	240 x 320 pixels
Frequency band	2.412, 2.472, 5.180, 5.240, 5.260, 5.320, 5.500, 5.700, 5.745, 5.825 GHz
Lines quantity	- lines
Phonebook capacity	- entries
Storage temperature (T-T)	-30 - 60 °C
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Safety	UL 60950-1, CAN/CSA 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950.1, IEC 60529 (IP 67)
Certification	● 47 CFR 15 B ● ICES-003 B ● EN 55022 B ● AS/NZS CISPR 22 B ● CISPR 22 B ● VCCI B ● EN 61000-3-2 ● EN 61000-3-3 ● KN 22 B ● EN 55024 ● EN 50082-1 ● EN 61000-6-1 ● EN61000-6-3 ● EN 300386 ● EN 60601-1-2 ● KN
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	17 mm
Width	56 mm
Height	132 mm
Weight	126 g