37
Programmable parameters
Dialling restrictions/call blocking
Your telephone system allows you to block the dialling of certain phone numbers or phone
number sections. 20 blocked numbers and 16 (+ 4 fix ) exception numbers are available for
this purpose. If the dialling restriction function (with exception numbers) is activated, the dialled
phone number will be verified first. If a blocked digit is identified, the connection set-up via CO-
line to the requested party will be interrupted after the last digit and a busy tone can be heard.
The phone numbers within the list of blocked numbers are only applicable in case of external
calls. The CO-line access code (0, 94 or 95 additionally for tiptel 2/8 clip) does not belong to
the phone number in the list of blocked numbers.
The blocked numbers can be neutralised by a list of exception numbers. These exception
numbers have a higher priority than the numbers indicated in the blocked numbers list.
Furthermore, they can be dialled at any time via telephones with CO-line access authorisation.
Example:
The number 0190 is blocked.
The digit sequence 01901 is entered in the list of exception numbers.
Connection set-up with phone number 01902 456789: this dialling attempt is cancelled when
the digit "2" is entered.
Connection set-up with phone number 01901 456789: this dialling attempt is not influenced by
the above entries.
Connection set-up with phone number 0191 456789: this dialling attempt is not influenced by
the above entries.
