Additional Information; Dtmf Tones - Nokia 650 User Manual

6. Additional information

DTMF tones

The phone can send DTMF tones to communicate with answering
machines, computerised telephony services etc.
The tones can be sent even when the keypad tones are set to Off.
Manual transmission
Make a call to the desired phone number and key in the numbers
that you want to send as DTMF tones.
Automatic transmission
Start a call in the normal way. Then, proceed as follows: Press
Options, scroll with or to Send DTMF, and press
Select. Key in the DTMF sequence or recall it from Phone Book,
and press OK to send it.
Pressing Exit ends the DTMF transmission but not the call.
Placing pauses in a DTMF sequence
When keying in a DTMF sequence, you can place pause characters
in front of or between DTMF numbers.
For a pause of 2.5 seconds, press three times quickly (p is
displayed). When sending the sequence, all numbers following the
pause(s) are sent as DTMF tones.
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