Siemens optiPoint 400 - Manual (Page 64)

Step by Step
Private Sphere/Security
64
Private Sphere/Security
Turning Ringer Cutoff On and Off
You can activate the ringer cutoff function if you do not
want the receive any calls. Calls are only identified by
one ring signal, an indication on the display, and a key
which has been programmed to flash (such as a trunk
key).
Select and confirm.
or
or
qml
or
rml
Enter the code for "on" or "off".
Turning Do Not Disturb On and Off
You can activate the do not disturb function if you do not
want the receive any calls. When do not disturb is acti-
vated, internal callers hear a busy signal and external
callers are rerouted to a telephone assigned for this pur-
pose (contact your service personnel).
Select and confirm.
or
or
qmk
or
rmk
Enter the code for "on" or "off".
Ringer cutoff on?
Ringer cutoff off?
DND on?
DND off?
When you lift the handset, a special dial tone
(continuous buzzing tone) reminds you that do
not disturb is active.
Authorized internal callers can automatically
override the do not disturb function after five sec-
onds.