Tone Signals - Sony Ericsson J23OI User Manual

Additional calling functions

Tone signals

You can use telephone banking services or control an
answering machine by sending tone signals (also known
as DTMF tones or touch tones) during a call.
To send and clear tones
• Press the number keys
• To clear the display after a call
Notepad
You can use the phone to make a note of a phone number
during a call. When you press the number keys, the person
you are talking to hears tone signals. To turn these tone
signals off during the call, press
When you end the call, the number remains in the display.
To call the number
Showing or hiding your number
If your subscription supports CLIR (Calling Line Identification
Restriction), you can hide your phone number when making
a call.
To show or hide your phone number
1
Enter the phone number you want to call, press
2
} Hide my number
30
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}
.
YES
Show my numb. }
or
, and
}
.
NO
} Turn off tones }
YES
.
.
YES
.
.