Cisco 7925G Administration Guide - Page 212

General Troubleshooting Information Chapter 10 Troubleshooting the Cisco Unified Wireless IP Phone 7925G Troubleshooting Tips for the Cisco Unified Wireless IP Phone 7925G Table 10-3 provides general troubleshooting information for the wireless IP phone. Table 10-3 Cisco Unified Wireless IP Phone Troubleshooting Tips Summary Phone is resetting Time on phone is incorrect Ring volume is too low Phone does not ring One-way audio on phone Delays when roaming from one location to another Phone firmware downgrades 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 10-8. 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. 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. 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. 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. 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. 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. 10-16 Cisco Unified Wireless IP Phone 7925G Administration Guide for Cisco Unified Communications Manager 7.0(1) OL-15984-01