Cisco 7925G Administration Guide

CHAPTER 2
VoIP Wireless Network
•
VoIP Wireless Network Overview, page 23
•
Wireless LAN, page 23
•
WLAN Standards and Technologies, page 24
•
VoIP Wireless Network Components, page 32
•
Voice Communication Security in WLANs, page 39
•
Site Survey Verification, page 44
VoIP Wireless Network Overview
This chapter provides an overview of the interaction between the Cisco Unified Wireless IP Phone 7925G,
7925G-EX, and 7926G and other key components of a VoIP network in a wireless local area network (WLAN)
environment.
For detailed information, see the Cisco Unified Wireless IP Phone 7925 and 7926 Series Deployment Guide
: http://www.cisco.com/en/US/products/hw/phones/ps379/products_implementation_design_guides_list.html
Wireless LAN
With the introduction of wireless communication, wireless IP phones can provide voice communication within
the corporate WLAN. The Cisco Unified Wireless IP Phone depends upon and interacts with wireless access
points (APs) and key Cisco IP telephony components, including Cisco Unified Communications Manager
Administration, to provide wireless voice communication.
In a traditional LAN, IP phones and computers use cables to transmit messages and data packets. Cisco Unified
WLAN delivers security, scalability, reliability, ease of deployment, and management similar to wired LANs.
It includes RF capabilities that enable real-time access to core business applications and provides proven
enterprise-class secure connectivity. The WLAN is an integrated end-to-end solution that uses wireless IP
phones and APs, network infrastructure, network management, and mobility services.
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Administration Guide
23

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