Sony Ericsson T637 User Guide - Page 43

Networks When you turn on the phone, it automatically selects your home network if this is within range. If it is not within range, you may use another network, provided your network operator has an agreement that allows you to do so. This is called roaming. You can select the network you want to use, or you can add a network to your list of preferred networks. You can also change the order in which networks are selected during an automatic search. For all such options, scroll to Connect, GSM Networks. 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 the tones, press the number keys 0-9, or . • To clear the display after the call is finished, press . 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 the joystick and select Turn Off Tones. When you end the call, the number remains in the display. You can then call the number by pressing Call. Showing or hiding your number If your subscription supports the Calling Line Identification Restriction (CLIR) service, 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. 2. Press More and select Call and Hide ID or Call and Show ID. 42 Calling This is the Internet version of the user's guide. © Print only for private use.