1 Find "Profile settings"
Press the Navigation key.
Select Messages.
Select Settings.
Select Text message.
Select SIM.
Select Profile settings.
2 Enter the message centre number
Highlight the required profile.
Press the Left selection key.
Select Edit.
Highlight the field below "SMSC address".
Key in +35387699989 and press the Left selection key.
Select Save.
3 Select validity period
Select Validity period.
Press Navigation key right to select Maximum.
4 Return to the home screen
Press Disconnect repeatedly to return to the home screen.