Siemens Gigaset CX203isdn Owner's Manual page 108

i
s
Set base
s
Settings
~
OK
s
ISDN settings
s
Lg.-dist. code
s
National : 0
Change number
~
Save entry
Open the menu.
Select the menu item and confirm.
OK
Select the menu item and confirm.
OK
Enter system PIN if required (page 89).
Select the menu item and confirm.
OK
Select the menu item and confirm.
OK
W
Select the type of long distance prefix and open
submenu, e.g. National : 0.
Confirm.
OK
W
Enter a new or changed long distance prefix and
open the submenu.
Confirm.
OK
System settings
107