Siemens 1200 Manuale Utente

Possible cause:
No number or function is assigned to a key.
Possible response:
Program the key for the number or function

Possible cause:
The internal phone book has no entries.
Possible response:
Store the name with station and speed-dial number 
Æ page 42.

Possible cause:
The external trunk is busy; you hear a busy signal tone.
Possible response:
Try again later on.

Possible response:
Enter a different park slot.

Possible response:
Try again later on.

Possible cause:
You entered the wrong code when locking/unlocking 
the telephone 

Possible response:
Enter the correct code.

Possible cause:
You entered the wrong code when changing the PIN.
Possible response:
Enter the correct code 

Possible cause:
Your telephone is locked and you have tried to dial an ex-
ternal number.
Possible response:
Unlock the telephone 

Possible cause:
You have dialed an external number, but have exceeded 
your call charge limit.
Possible response:
Ask the service personnel to change your call charge 
limit.

Call pick-up is no longer possible.