switel DCIP 49S Mode D'emploi page 168

Special Functions
Call barring
This function can be used to bar the dialling of specific phone numbers. If several
DCIP 49S handsets are connected in a system, the barred numbers must be en-
tered individually on each handset. The call barring function is set using the
menu. Refer to Page 161 for the sequence of option selections.
Call barring − examples
Number
0
00
017
019
168
Under no circumstances enter an emergency call number or the first di-
git of an emergency call number. These emergency call numbers can-
not be dialled if you do.
You are barred from dialling
All long−distance calls
All international calls
Mobile phone numbers beginning with 017"
Mobile phone numbers beginning with 019"