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Cisco Unified Wireless IP Phone 7925G Administration Guide for Cisco Unified Communications Manager 7.0(1)
OL-15984-01
Chapter 10 Troubleshooting the Cisco Unified Wireless IP Phone 7925G
General Troubleshooting Information
Troubleshooting Tips for the Cisco Unified Wireless IP Phone 7925G
Table 10-3 provides general troubleshooting information for the wireless IP phone.
Ta b l e 10-3 Cisco Unified Wireless IP Phone Troubleshooting Tips
Summary Explanation
Phone is resetting 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 10-8.
Time on phone is incorrect Sometimes the time or date on the phone is incorrect. The Cisco Unified
Wireless IP
Phone 7925G 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.
Ring volume is too low To see if the ring volume is set correctly on the phone, choose Settings
>Phone Settings > Sound Settings > Volumes. Scroll up for the highest
volume
You can also press the volume button on the side of the phone and the volume
setting appears on the phone screen.
Phone does not ring To see if the phone is set to ring, choose Settings > Phone Settings > Sound
Settings > Alert Pattern, and check that it a ring setting is selected.
To see if a ring tone has been set for the phone, choose Settings > Phone
Settings > Ring Tone. If none is set, add a ring tone for the phone.
To see if the speaker is functioning properly, adjust the ring volume settings
to the highest level. Enable keypad tones or call the phone to check the
speaker.
One-way audio on phone Check that the speaker is functioning properly. Adjust the speaker volume
setting and call the phone to check the speaker.
Check that ARP caching has been set on the AP. See “VoIP WLAN
Configuration” section on page 2-21.
Delays when roaming from one location to
another
If Cisco Catalyst 45xx series switches are being used as the main Layer 3
switches in the network, ensure that the supervisor blades are a minimum
SUP2+ or later version. The Cisco
Unified Wireless IP Phone 7925G (or any
wireless client) experiences roaming delays when an earlier version (SUP 1
or SUP2) blade is used.
Phone firmware downgrades After applying a Cisco Unified Communications Manager upgrade or patch,
that is older than the current Cisco
Unified Wireless IP Phone 7925G
firmware, the phones could automatically downgrade to the load contained in
the patch. Check the Cisco
Unified Communications Manager7925G device
default image in the TFTP folder to fix this problem.
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