Cisco 8821 Administration Guide

CONTENTS
CHAPTER 1 Your Phone 1
The Cisco Wireless IP Phone 8821 and 8821-EX 1
Buttons and Hardware 3
Startup Sequence 7
Care of Your Phone 7
Clean the Phone Exterior 7
If You Drop Your Phone in Water 8
Best Practices for Battery Power Conservation 8
New and Changed Information 10
Changes for Firmware Release 11.0(3) 10
Phone Firmware 10
Device Packs 11
Phone Configuration Files 11
Related Documentation 11
Cisco Wireless IP Phone 882x Series Documentation 11
Cisco Unified Communications Manager Documentation 12
Cisco Unified Communications Manager Express Documentation 12
Cisco Business Edition 6000 Documentation 12
Documentation, Support, and Security Guidelines 12
Cisco IP Phone User Support 12
CHAPTER 2 VoIP Networks 15
Network Requirements 15
Network Protocols 16
Cisco Wireless IP Phone 882x Deployment Guide 19
Wireless LAN 19
Wi-Fi Network Components 20
AP Channel and Domain Relationships 20
Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager
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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