BusinessPhone – Dialog 4223 Professional / Dialog 3213

## Security

You can use your four-digit Password for blocking your phone from unauthorized use, for making external calls from any blocked extension, for entering the Message system or when you are using the DISA function.

Note:

The first time you enter the Message system you might be requested to change your Password if it is default (0000). This procedure is performed directly in the Message system. See section Messages.

#### More Information

Change Password

Bypass blocked extension

Block extension

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