Samsung Galaxy Tab S 10.5
Set up your tablet for SMS
A text message is a message that can be sent to other tablets and mobile phones. Your tablet can send and receive text messages as soon as you've inserted your SIM. If this isn't the case, you can set up your tablet for SMS manually.
1. Find "Settings"
Press the menu icon.
Press Messages.
Press the menu icon.
Press Settings.
2. Save the message centre number
Press Text message settings.
Press Message centre.
Key in +6421600600 and press OK.
3. Return to the home screen
Press the Home key to return to the home screen.