Steren TEL-250 Manual De Instrucciones página 37

Area code filtrate function
1. When on-hook state, press "SET" or "ENTER" key, press "UP" or "DOWN" key
to choose "LOCAL" sign.
2. Press "SET" or "ENTER" key.
3. Press number key to input the local number, any mistake by press "DEL" key
to edit it.
4. Press "SET" or "ENTER" key to confirm and exit.
Example: If input the area code is 0123, when an incoming call 0123456789 calls
in, the unit will auto filtrate area code and LCD will display only 456789.
Note: the area code can be set 6 digits max.
Anti-stealing dialing (illegal parallel phone prevent)
1. This function prevents a extension fron making a call.
2. When on-hook state, press "SET" or "ENTER" key.
3. Press "UP" or "DOWN" key to choose "ALARM" sign.
4. Press "SET" or "ENTER" key, LCD displays "ON" or "OFF".
5. Press "UP" or "DOWN" to set "ON" or "OFF".
6. Press "SET" or "ENTER" to confirm and exit.
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