Yealink SIP-T48G

Troubleshooting
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2. Click Browse to locate the custom factory configuration file from your local system.
3. Click Import.
When the custom factory configuration file is imported successrully, you can reset the IP
phone to custom factory configurations. For more information on how to reset to factory
configuration via web user interface, refer to How to reset the IP phone to default
factory configurations? on page 776.
You can delete the user-defined factory configurations via web user interface.
To delete the custom factory configuration files via web user interface:
1. Click on Settings->Configuration.
2. Click Del in the Import Factory Configuration field.