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Telephone
To send DTMF tones during a call
A dual tone multi-frequency tone system is used by all touch-tone telephones.
DTMF assigns a specific frequency, or tone, to each key so that it can easily be
identified by a microprocessor. DTMF tones allow you to communicate with voice
mailboxes, computerised telephony systems, etc.
To send DTMF tones during a call, you have two methods:
Tip: Besides the numbers
0 - 9, you can also use the
characters p, w, *, and #
when sending DTMF tones.
For information on these
characters, see ‘To store
DTMF tones’ on page 101.
• Type the digits with the communicator keyboard. No menu or command button
selection is needed before starting to type the digits. Each keystroke generates
a DTMF tone which is transmitted while the call is active.
• Alternatively,
1 Press Send DTMF. The DTMF sequences you have stored in the contact card
of the person you are talking with are shown. For information on how to
store DTMF sequences, see page 101.
2 Select a DTMF sequence. You can edit the sequence. If there are no stored
sequences, you can type a new DTMF sequence into the input field.
3 Press Send tone.
Note: You can send DTMF tones during a conference call by typing the digits
with the communicator keyboard, but you cannot access stored DTMF
sequences.
Telephone Settings
In the Telephone main view, press the Menu key and select Settings to select one
of the following settings.
Linda1.book Page 77 Friday, April 12, 2002 8:31 PM