Siemens optiPoint 500 advance - Who to Contact if a Problem Occurs

Step by step
Advice for users
120
120120
120
Possible response:
Correct your input, select a permissible option, enter
the number in full.
or Possible cause:
a) Attempt to use a barred function.
b) PIN entered incorrectly.
Possible response:
a) Contact your system administrator for authorization
to activate this function.
b) Enter the PIN correctly.
Possible cause:
Number not entered completely, star or pound key not
pressed.
Possible response:
Enter the number or code correctly
(or as instructed).
Possible cause:
Data transmission in progress.
Possible response:
Wait and then try again later.
Who to contact if a problem occurs
Contact your system administrator for problems lasting
longer than, for example, 5 minutes.
Not authorized
Not allowed
Not available
Protected