Find "Sending options"
Press the Navigation key.
Scroll to Messages and press the Navigation key.
Scroll to Settings and press the Navigation key.
Scroll to Text messages and press the Navigation key.
Scroll to Sending options and press the Navigation key.
Select validity period
Scroll to Validity period and press Navigation key right or Navigation key left to select Maximum.
Select message type
Scroll to Message type and press Navigation key right or Navigation key left to select Text.
Turn off reply via same message centre
Scroll to Reply path and press the Navigation key to turn off reply via same message centre.
When the box next to the menu item is empty, the function is turned off.
Turn request for delivery reports on or off
Scroll to Delivery report and press the Navigation key to turn request for delivery reports on or off.
If you turn on request for delivery reports, you'll be notified when your text message has been delivered.
When the box next to the menu item is ticked (V), the function is turned on.
If you turn on request for delivery reports, you'll be notified when your text message has been delivered.
Save the message centre number
Scroll to Service centre and key in +35387699989
Save and exit
Press Save.
Press Disconnect to return to standby mode.