Cisco 7925G Administration Guide

Stream Statistics Menu 206
CHAPTER 10 Troubleshooting 209
Startup and Connectivity Problems 209
Incomplete Startup Process 209
No Association to Cisco Aironet Access Points 210
Access Point Settings Mismatch 211
Authentication Failed, No AP Found 211
EAP Authentication Failed Message 212
AP Error - Cannot Support All Requested Capabilities 212
Phone Does Not Register with Cisco Unified Communications Manager 212
Cisco Unified Communications Manager Phone Registration Rejected 212
Phone Cannot Connect to TFTP Server or to Cisco Unified Communications Manager 213
TFTP Server Settings 213
IP Addressing and Routing 214
DNS Settings 214
Cisco Unified Communications Manager and TFTP Service Status 215
Configuration File Corruption 215
Cisco Unified Wireless IP Phone Resets Unexpectedly 215
Phone Resets Due to Access Point Setup 215
Intermittent Network Outages 216
DHCP Settings Errors 216
Voice VLAN Setup Errors 216
Phones Have Not Been Intentionally Reset 217
DNS or Other Connectivity Errors 217
Audio Problems 217
One-Way Audio or No Speech Path 217
Ring Volume is Too Low 218
Phone Does Not Ring 219
Roaming and Voice Quality or Lost Connection Problems 219
Voice Quality Deteriorates While Roaming 219
Voice Conversation Delays While Roaming 220
Phone Loses Cisco Unified Communications Manager Connection While Roaming 220
Phone Does not Roam Back to Preferred Band 220
Voice Quality Monitoring 221
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