- Your Nokia Lumia 900 may need extra settings if you want to send SMS messages with your BASE SIM card. Follow the instructions below for setting up the BASE SMS center.
* Start screen.
* Choose *Messaging*.
* Choose the options symbol.
* Scroll down.
* Under *SMS centre number*, choose the text box.
* Enter +32 486 0000 05, and choose *save*.
* Return to the Start screen.
- Start screen.
- This Nokia Lumia 900 can now be used for receiving and sending SMS in Belgium and abroad.