Samsung 08/2004 - Manual (Page 38)

Call functions
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The Phonebook entries are listed.
4. Enter the first a few letters of the name that you
want to find.
The Phonebook entries are listed starting with
the first entry matching your input.
Note: You can also scroll through the Phonebook
from the beginning, by pressing the Up or
Down key.
5. To view the highlighted entry, press the Ok soft
key.
For further details about the Phonebook feature,
see page 60.
Muting/Sending key tones
You can turn the key tones off or on during a call.
When the Mute keys option is selected, your phone
does not transmit the key tones. It allows you to
press keys without hearing annoying key tones
during a call.
To communicate with answering machines or
computerised telephone systems, the Send keys
option must be selected.
Sending DTMF tones
You can send the DTMF(Dual Tone Multi-Frequency)
tones of the number on the display during a call.
This option is helpful for entering a password or
account number when you call an automated
system, like a banking service.
To send the DTMF tones: