Troubleshooting
217
Do one of the followings:
Try to set another available IP address for the IP phone.
Check the configuration of the network via phone user interface at the path
Menu->Settings->Advanced Settings->Network->WAN Port. If Static IP Client is
selected, select DHCP IP Client instead.
Reset your phone to factory configurations after you have tried almost all
troubleshooting suggestions but do not correct the problem. You need to note that all
customized settings will be overwritten after resetting.
To reset your phone via web user interface:
1. Click on Phone->Upgrade.
2. Click Reset to Factory in the Reset to Factory field.