Phone Resets Due to DHCP Setting Errors
Problem
The DHCP settings may be incorrect.
Solution
Verify that you have properly configured the phone to use DHCP. Verify that the DHCP server is set up
properly. Verify the DHCP lease duration. We recommend that you set the lease duration to 8 days.
Related Topics
Check DHCP Settings, on page 181
Phone Resets Due to Incorrect Static IP Address
Problem
The static IP address assigned to the phone may be incorrect.
Solution
If the phone is assigned a static IP address, verify that you have entered the correct settings.
Phone Resets During Heavy Network Usage
Problem
If the phone appears to reset during heavy network usage, it is likely that you do not have a voice VLAN
configured.
Solution
Isolating the phones on a separate auxiliary VLAN increases the quality of the voice traffic.
Phone Resets Due to Intentional 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
.
Cisco Unified IP Phone 8941 and 8945 Administration Guide for Cisco Unified Communications Manager 10.0
(SCCP and SIP)
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Phone Reset Problems
