Sony Ericsson J230i User Guide - Page 31
Additional calling functions, To send and clear tones, To show or hide your phone number
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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 - , and . • To clear the display after a call } NO. 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 } Turn off tones } YES. When you end the call, the number remains in the display. To call the number } YES. 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 or Show my numb. } YES. 30 This is the Internet version of the user's guide © Print only for private use.