Cisco 8821 Administration Guide

CHAPTER 2
VoIP Networks
•
Network Requirements, page 15
•
Wireless LAN, page 19
•
Wi-Fi Network Components, page 20
•
802.11 Standards for WLAN Communications, page 23
•
Security for Communications in WLANs, page 25
•
WLANs and Roaming, page 28
•
Cisco Unified Communications Manager Interaction, page 29
•
Voice Messaging System Interaction, page 29
Network Requirements
For the phone to successfully operate as an endpoint in your network, your network must meet the following
requirements:
•
VoIP Network
◦
VoIP is configured on your Cisco routers and gateways.
◦
Cisco Unified Communications Manager is installed in your network and is configured to handle
call processing.
•
IP network that supports DHCP or manual assignment of IP address, gateway, and subnet mask
•
Wireless LAN
◦
Access Points (APs) are configured to support voice over WLAN.
◦
Controllers and switches are configured to support voice.
◦
Security is implemented for authenticating wireless voice devices and users.
Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager
15

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