84
Entrance telephone
Using DTMF dialing
Your handset operates on the basis of digital information transmission.
However, certain applications, for example answering machines, can only be
operated using analogue technology. For this you have to send signals using
the dual-tone multifrequency signaling (DTMF) process.
Depending on how your system is configured (automatic tone dialing on or off -
to be configured by the service engineer) you must first switch to DTMF dialing.
This means, for example, that you can communicate with a variety of voice
storage systems.
You will find further details in the operating instructions for the relevant applica-
tions.
Automatic tone dialing is not active
During a connection you have to first switch to dual-tone multifrequency signal-
ing.
p
You are conducting a call.
Open the system menu.
s
t
w
Select the menu item and confirm.
s
t
w
Select the menu item and confirm.
o
Enter the numbers. All entries are sent as DTMF signals.
Automatic tone dialing is active
o
Enter the numbers. All entries are sent as DTMF signals.
Menu
Service?
*
53=Tone dialling?
