Conducting calls – enhanced functions
75
Step by Step
Using dual-tone multifrequency
signalling
Your handset operates on the basis of digital informa-
tion transmission. However, certain applications,
forexample, answering machines, can only be operated
using analog technology. For this you must send signals
using the dual-tone multifrequency signalling (DTMF)
process.
Depending on how your system is configured (automat-
ic tone dialling on or off - to be configured by the service
engineer) you must first switch to DTMF dialling. This
means, forexample, that you can communicate with a
variety of voice storage systems.
You will find further details in the operating instructions
for the relevant applications.
Automatic tone dialling is not active
During a connection you must first switch to dual-tone
multifrequency signalling.
p You are on a call.
Call the system menu.
> < [Select the menu item and confirm.
> < [Select the menu item and confirm.
o Enter the numbers. All entries are sent as DTMF sig-
nals.
Automatic tone dialling is active
o Enter the numbers. All entries are sent as DTMF sig-
nals.
Menu
Service?
*
53=Tone dialling?
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