Cisco 7925G Administration Guide

Related Topics
Voice QoS in Wireless Networks, on page 35
Site Survey Verification, on page 44
Bluetooth Wireless Technology
Bluetooth enables low-bandwidth wireless connections within a range of 30 feet (10 meters). The best
performance is in the 3- to 6-foot (1- to 2-meter) range. Bluetooth wireless technology operates in the 2.4 GHz
band, which is the same as the 802.11b/g band. Because of potential interference issues, we recommend that
you:
•
Use 802.11a, which operates in the 5 GHz band
•
Reduce the proximity to other 802.11b/g devices, Bluetooth devices, microwave ovens, and large metal
objects
VoIP Wireless Network Components
The wireless IP phone must interact with several network components in the WLAN to successfully place
and receive calls.
For more information, see Cisco Unified Wireless IP Phone 7925 and 7926 Series Deployment Guide at http:/
/www.cisco.com/en/US/products/hw/phones/ps379/products_implementation_design_guides_list.html.
Network Protocols
Cisco Unified Wireless IP Phones support several network protocols for voice communication. The following
table describes the network protocols that the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G
supports.
Table 9: Supported Network Protocols
Usage notesPurposeNetwork protocol
Cisco Unified Wireless IP Phones use CDP
to communicate information such as auxiliary
VLAN ID, per-port power management
details, and QoS configuration information
with the Cisco Catalyst switch.
Device-discovery protocol that runs
on all Cisco-manufactured equipment.
Using CDP, a device advertises its
existence to other devices and receives
information about other devices in the
network.
Cisco Discovery
Protocol (CDP)
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Administration Guide
32
VoIP Wireless Network
Bluetooth Wireless Technology

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