Troubleshooting Tips For The Cisco Unified Wireless Ip Phone 7921G - Cisco 7921G - Unified Wireless IP Phone VoIP Administration Manual

Chapter 10 Troubleshooting the Cisco Unified Wireless IP Phone 7921G
Table 10-2 Common Phone Status Messages (continued)
Message
Authentication Failed
Configuring IP
Configuring CM List

Troubleshooting Tips for the Cisco Unified Wireless IP Phone 7921G

Table 10-3
Table 10-3 Cisco Unified Wireless IP Phone Troubleshooting Tips
Summary
Phone is resetting
Time on phone is incorrect
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0
OL-15985-01
Description
The phone is unable to access the
WLAN, and the main phone screen is
not active.
The main phone screen is not active.
The main phone screen is not active.
provides general troubleshooting information for the wireless IP phone.
Explanation
The phone resets when it loses contact with the
Cisco Unified Communications Manager software. This lost connection can
be due to any network connectivity disruption, including access point
problems, switch outages, and switch reboots.
See the "Symptom: Cisco Unified Wireless IP Phone Resets Unexpectedly"
section on page
Sometimes the time or date on the phone is incorrect. The Cisco Unified
Wireless IP Phone 7921G gets its time and date when it registers with
Cisco Unified Communications Manager. Power cycle the phone to reset the
time or date.
The time shows in either 12 hour or 24 hour format.
Possible Explanation and Action
The authentication server does not
accept the security credentials.
Verify that the security mode and
credentials are correct by viewing the
Network profile. For information about
accessing and changing Network
profiles, see the
Profile Settings" section on page
The phone is attempting to obtain
network parameters such as its
IP address, or the IP address of the
gateway or router from the DHCP
server.
Wait a few minutes for the phone to
obtain the network parameters.
If the phone unable to retrieve the
IP address, then check that the DHCP
server is up and running.
The phone is downloading its
configuration files from the TFTP
server.
Wait a few minutes for the phone to
download all of its configuration files.
10-8.
General Troubleshooting Information
"Configuring Network
5-2.
10-15