Troubleshooting
Solution
By isolating the wireless phones on a separate auxiliary VLAN, you can use QoS to prioritize the voice traffic
over data traffic and improve the voice quality. See
Phones Have Not Been Intentionally Reset
Problem
If you are not the only administrator with access to Cisco Unified Communications Manager, you should
verify that no one else has intentionally reset the phones.
Solution
You can check if a Cisco Unified IP Phone received a command from Cisco Unified Communications Manager
to reset by pressing Applications on the phone and choosing Administrator Settings > Status > Network
Statistics.
• If the Restart Cause field displays Reset-Reset, the phone received a Reset/Reset from Cisco Unified
• If the Restart Cause field displays Reset-Restart, the phone reset because it received a Reset/Restart
DNS or Other Connectivity Errors
Problem
The phone reset continues and you suspect DNS or other connectivity issues.
Solution
If the phone continues to reset, eliminate DNS or other connectivity errors. See
Issues, on page
Audio Problems
When users report that active phone calls have poor voice quality that includes choppy audio, static or gaps
in audio, or no audio, use the information in this section to identify the cause of the problem.
Related Topics
Roaming and Voice Quality or Lost Connection Problems, on page 219
One-Way Audio or No Speech Path
Problem
One or more people on a call do not hear any audio.
Communications Manager Administration.
from Cisco Unified Communications Manager Administration.
229.
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Administration Guide
Phones Have Not Been Intentionally Reset
Voice QoS in Wireless Networks, on page 35
Determine DNS or Connectivity
for details.
217