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A text message is a message that can be sent to other mobile phones. Your phone can send and receive text messages as soon as you've inserted your SIM.
1. Find "Text messages (SMS)"
Press the message icon.
Press the menu icon.
Press Text messages (SMS).
2. Save the message centre number
Press Service center.
Key in +35387699989 and press OK.
3. Return to the home screen
Press the Home key several times to return to the home screen.