Yealink SIP-T27G User Manual page 105

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Note
Block Out
https://arttel.ru/shop/ip-telefony/yealink-sip-t27g
For more information on the valid values for the Account field, refer to
page 91.
Click Confirm to accept the change.
4.
The default value of minimum and maximum length is 1 and 15 respectively.
Area code is configurable via web user interface only.
You can block some 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 91.
Customizing Your Phone
Replace Rule on
Replace Rule on
95