Cisco 7925G Administration Guide

CHAPTER 10
Troubleshooting
•
Startup and Connectivity Problems, page 209
•
Cisco Unified Wireless IP Phone Resets Unexpectedly, page 215
•
Audio Problems, page 217
•
Roaming and Voice Quality or Lost Connection Problems, page 219
•
Voice Quality Monitoring, page 221
•
Common Phone Status Messages, page 223
•
General Troubleshooting Information, page 225
•
Reset Phone to Factory Defaults, page 228
•
Troubleshooting Procedures, page 228
Startup and Connectivity Problems
After installing a Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G in your network and adding
it to Cisco Unified Communications Manager Administration, the phone should start up as described in the
Phone Startup Process, on page 64. If the phone does not start up properly, see the following sections for
troubleshooting information.
Incomplete Startup Process
Problem
The phone does not start up and information does not display on the phone.
Cause
When an IP Phone connects to the wireless network, the phone should go through its normal startup process
and the phone screen should display information.
If the phone does not complete the startup process, the cause might be due to low RF signal strength, network
outages, a dead battery in the phone, or the phone might not be functional.
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Administration Guide
209

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