Siemens Hicom 150 E Office - Do Not Disturb; Preventing;Allowing Call Waiting

10
Preventing/Allowing Call Waiting
Preventing call waiting
Allowing call waiting
Do Not Disturb
Activating
Deactivating
Lift the handset.
Enter the code #490.
9 04
Lift the handset.
Enter the code
*
490.
9 04
Lift the handset.
If do not disturb is already activated, you hear
a special dial tone.
Enter the code
*
97.
9 7
Lift the handset.
Enter the code #97.
9 7