Yealink SIP-T42S User Manual page 97

For more information on the valid values for the Account field, refer to
page 83.
Click Confirm to accept the change.
4.
The default value of minimum and maximum length is 1 and 15 respectively.
Note
Area code is configurable via web user interface only.
Block Out
You can block specific numbers (up to 10) from being dialed on your phone. When you dial a
block out number on your phone, the dialing will fail and the LCD screen will prompt "Forbidden
Number".
To add a block out number via web user interface:
Click on Settings->Dial Plan->Block Out.
1.
Enter the desired value in the BlockOut NumberX field.
2.
Enter the desired line ID in the Account field or leave it blank.
3.
For more information on the valid values for the Account field, refer to
page 83.
Customizing Your Phone
Replace Rule on
Replace Rule on
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