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How do I use the Direct Call feature on my Samsung Galaxy S® 4?
The Direct call feature lets you call a contact immediately when you place your device to your ear while viewing a contact, viewing call information from the call logs, or engaging in a text message conversation.
You can turn on the Direct Call feature in the Motion settings menu. From the Home screen, touch Menu > Settings > My device > Motions and gestures > Motion. Touch the slider to turn Motion on . Touch the slider next to Direct call to turn it on .