Entrance telephone
79
Tracing a call
You can apply to your carrier for "call tracing" on malicious calls. An authorized
extension is then in a position to request the identification of the phone number.
This also works for 30 seconds after the malicious caller has hung up.
However, you should not hang up.
This function can also be called directly by entering the code
p
You receive a malicious call.
Do not hang up.
Open the system menu.
s
t
w
Select the menu item and confirm.
s
t
w
Select the menu item and confirm. The caller is identified in the attendant con-
sole.
a
Press the End call key to end the operation.
Entrance telephone
If the service engineer has set up an entrance telephone, you can speak to the
door intercom and activate the door opener from your handset.
If you are authorized to release a door, then a user can open the door by
entering a five-digit code (for example, by means of a DTMF transmitter or
installed keypads).
Some of the functions described below can also be called directly by entering
the relevant code
Talking to a visitor by means of the door opener equipment
Your handset rings.
Either:
Press the Talk key within 30 seconds. You are connected to the entrance
telephone immediately.
Or:
If more than 30 seconds have passed: Press and hold down the Talk key.
o
Enter the internal phone number for the door opener. You are connected to the
door opener.
Using the handset to open the door opener during a call
s
t
w
Select the menu item and confirm.
Menu
Service?
*
84=Trace call?
Open door?