Stand outside with a clear view of the sky with the phone antenna pointing upwards. There must be a clear line of sight between the phone's antenna and the satellite. The more sky you can see the stronger the signal should be from the satellite. If open sky makes up about 70% of your view when you look up, then the signal should be strong. 'Searching satellite' will appear on the screen. The top left of the screen will display 'Inmarsat' when your phone is connected to the satellite. The signal bars indicate the signal strength. At least two signal bars are required to make and receive calls.