The SMS center or also called "SMSC" ensures that an SMS finds its way from one mobile phone to another. Basically, it is a kind of router that determines the route of a sent SMS and then sends it on its way to the receiver.
|1. Open the phone app||2. Click on the icon if the app has not been launched before, otherwise perform step 3.||3. Enter this combination|
|4. ,,Phone information"||5. Enter the SMS center (SMSC) of your network provider and save the entered phone number with "Update"|