Checking Static Ip Address Settings; Verifying Voice Vlan Configuration; Verifying That The Phones Have Not Been Intentionally Reset - Cisco CP-3911 - Unified SIP Phone 3911 VoIP Administration Manual

Cisco Unified IP Phone Resets Unexpectedly

Checking Static IP Address Settings

Verifying Voice VLAN Configuration

Verifying that the Phones Have Not Been Intentionally Reset

Cisco Unified SIP Phone 3911 Administration Guide for Cisco Unified Communications Manager
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If the phone has been assigned a static IP address, verify that you have entered the
correct settings. See the
more information.
If the Cisco Unified IP Phone appears to reset during heavy network usage (for
example, following extensive web surfing on a computer connected to same
switch as phone), it is likely that you do not have a voice VLAN configured.
Isolating the phones on a separate auxiliary VLAN increases the quality of the
voice traffic.
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.
You can check whether your phone received a command from Cisco Unified
Communications Managerr to reset by pressing the Settings button on the phone
and choosing Status > Network Statistics. If the phone was recently reset one of
these messages appears:
Reset-Reset—Phone closed due to receiving a Reset/Reset from Cisco
•
Unified Communications Manager administration.
Reset-Restart—Phone closed due to receiving a Reset/Restart from Cisco
•
Unified Communications Manager administration.
Chapter 7
"Configuring Network Settings" section on page 4-3
Troubleshooting and Maintenance
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