Sony Xperia M4 Aqua

You can't make voice calls - Sony Xperia M4 Aqua

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 1

Turn flight mode on or off

Slide two fingers down the display starting from the top edge of your phone.
Press Airplane mode to turn the function on or off.

Slide two fingers down the display starting from the top edge of your phone.
Press Airplane mode to turn the function on or off.