To use the applications
When the cover is opened, the application that was on the display when you
closed the cover, appears in the same state. However, if you have made or
answered a voice call via the phone and switch to the communicator interface
by opening the cover, the Telephone application starts automatically.
To switch to another application, press the corresponding application button.
You can do this even during a call. You need not exit any application before
starting another. All inactive applications remain in the background until you
start them again.
To send or receive calls or messages with any of the communications
applications, remember that the phone must be switched on and in a service
area with adequate cellular signal strength.