Yealink SIP-T21P

User Guide for the SIP-T21P IP Phone
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2. Click Export to open file download window, and then save the file to your local
system.
To import the phone configurations via web user interface:
1. Click on Settings->Configuration.
2. Click Browse to locate a configuration file from your local system.
3. Click Import to import the configuration file.
Note
How to upgrade firmware?
To upgrade firmware via web user interface:
1. Click on Settings->Upgrade.
The file format of configuration file must be *.bin.