Cisco 8821 Guide

Cisco Wireless IP Phone 8821 and 8821-EX Wireless LAN Deployment Guide
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RF Profiles ........................................................................................................................................................................................ 65!
FlexConnect Groups ......................................................................................................................................................................... 67!
Multicast Direct ................................................................................................................................................................................ 67!
QoS Profiles ...................................................................................................................................................................................... 68!
Advanced Settings ............................................................................................................................................................................ 72!
Cisco Meraki Access Points .................................................................................................................................................................. 74!
Creating the Wireless Network ........................................................................................................................................................ 75!
SSID Configuration .......................................................................................................................................................................... 77!
Radio Settings ................................................................................................................................................................................... 80!
Traffic Shaping ................................................................................................................................................................................. 82!
Monitoring Clients ............................................................................................................................................................................ 82!
Cisco Autonomous Access Points ......................................................................................................................................................... 83!
802.11 Network Settings .................................................................................................................................................................. 83!
WLAN Settings ................................................................................................................................................................................ 87!
Call Admission Control (CAC) ........................................................................................................................................................ 97!
QoS Policies ..................................................................................................................................................................................... 98!
Power Management ........................................................................................................................................................................ 101!
Cisco Autonomous Access Point Sample Configuration ............................................................................................................... 102!
Configuring Cisco Call Control ........................................................................................................................................................... 107!
Cisco Unified Communications Manager .......................................................................................................................................... 107!
Device Pools ................................................................................................................................................................................... 107!
Phone Button Templates ................................................................................................................................................................. 108!
Security Profiles ............................................................................................................................................................................. 108!
SIP Profiles ..................................................................................................................................................................................... 110!
Common Settings ........................................................................................................................................................................... 113!
QoS Parameters .............................................................................................................................................................................. 113!
G.722 and iSAC Advertisement ..................................................................................................................................................... 114!
Audio Bit Rates .............................................................................................................................................................................. 114!
Wireless LAN Profiles ................................................................................................................................................................... 115!
Cisco Unified Communications Manager Express ............................................................................................................................. 124!
Product Specific Configuration Options ............................................................................................................................................ 128!
Configuring the Cisco Wireless IP Phone 8821 and 8821-EX .......................................................................................................... 138!
Wi-Fi Profile Configuration ............................................................................................................................................................... 138!
Automatic Provisioning .................................................................................................................................................................. 138!
Local User Interface ....................................................................................................................................................................... 139!
Admin Webpage ............................................................................................................................................................................. 147!
Certificate Management ..................................................................................................................................................................... 150!
Manual Installation ......................................................................................................................................................................... 150!
Simple Certificate Enrollment Protocol (SCEP) ............................................................................................................................ 153!
Certificate Removal ........................................................................................................................................................................ 186!
Bluetooth Settings ............................................................................................................................................................................... 186!
Upgrading Firmware .......................................................................................................................................................................... 188!
Troubleshooting .................................................................................................................................................................................... 189!
WLAN Signal Indicator ....................................................................................................................................................................... 189!
Neighbor List ...................................................................................................................................................................................... 190!
WLAN Statistics .................................................................................................................................................................................. 190!
Call Statistics ...................................................................................................................................................................................... 191!
Status Messages .................................................................................................................................................................................. 191!

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