BlackBerry 9720

You can't make voice calls - BlackBerry 9720

Cause 2 of 9: Flight mode is turned on

If flight mode is turned on, you can't make or receive calls.

Solution: Turn off flight mode.

Step 1 of 3

Turn flight mode on or off

Press the Menu key twice.

Step 2 of 3

Turn flight mode on or off

Press Manage Connections.

Step 3 of 3

Turn flight mode on or off

Press Mobile Network to turn the function on or off.

Press the Menu key twice.

Press Manage Connections.

Press Mobile Network to turn the function on or off.