
Microsoft Lumia 535
Windows Phone 8.1
1. Find "set"
Slide your finger downwards starting from the top of the screen.

Press ALL SETTINGS.

Press network+.

Press set.

2. Turn call waiting on or off
Press the indicator next to "Call waiting" to turn the function on or off.

3. Return to the home screen
Press the Home key to return to the home screen.
