Cisco 7925G Administration Guide

Supported Security Features 15
Security Profiles 17
Authenticated, Encrypted, and Protected Phone Calls 18
Protected Calls Identification 18
Security Restrictions 19
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Deployment 19
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Setup in Cisco Unified
Communications Manager 20
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Installation 20
CHAPTER 2 VoIP Wireless Network 23
VoIP Wireless Network Overview 23
Wireless LAN 23
WLAN Standards and Technologies 24
802.11 Standards for WLAN Communications 24
Radio Frequency Ranges 25
802.11 Data Rates, Transmit Power, Ranges, and Decibel Tolerances 27
Wireless Modulation Technologies 29
AP, Channel, and Domain Relationships 29
WLANs and Roaming 30
Bluetooth Wireless Technology 32
VoIP Wireless Network Components 32
Network Protocols 32
Cisco Unified Wireless AP Interactions 34
AP Association 34
Voice QoS in Wireless Networks 35
Cisco Unified Communications Manager Interactions 37
Phone Configuration Files and Profile Files 37
Dynamic Host Configuration Protocol Server Interactions 38
Voice Communication Security in WLANs 39
Authentication Methods 39
Authenticated Key Management 41
Encryption Methods 41
AP Authentication and Encryption Options 42
Site Survey Verification 44
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Administration Guide
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Contents

Cisco 7925G Specifications

General

Keypad number of keys	12
Display diagonal	2 \
Display resolution	176 x 220 pixels
Call waiting	Yes
Lines quantity	6 lines
Voice codecs	G.711a, G.722, G.729a, iLBC
Security algorithms	128-bit WEP, SSL/TLS, WPA
Supported network protocols	DHCP, TFTP, DNS, SCCP, SRST
Input voltage	100 - 240 V
Dimensions (WxDxH)	52 x 20 x 127 mm
Minimum system requirements	Cisco Unified Communications Manager 4.1, 4.2, 4.3, 5.1, 6.0, 6.1, 7.0 + Cisco Unified Communications Manager Express 4.3 +
Input frequency	50/60 Hz
Storage temperature (T-T)	-30 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Product type	IP Phone
Product color	Gray
Safety	UL 60950, CSA 22.2 No.60950, EN 60950, IEC 60950, AS/NZS 60950, IEC 60529 (IP 54)
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 EN 55024 EN 50082-1 EN 61000-6-1 EN 300386 EN 60601-1-2 KN
Compliance industry standards	IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.1X, IEEE 802.11e

Weight and Dimensions

Weight	138 g