Samsung SM-X510 User Manual page 51

Apps and features
Options during calls
Add call: Dial a second call. The first call will be put on hold. When you end the
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second call, the first call will be resumed.
Hold call: Hold a call.
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Video call: Switch to a video call.
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Bluetooth: Switch to a Bluetooth headset if it is connected to the device.
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Mute: Turn off the microphone so that the other party cannot hear you.
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Keypad / Hide: Open or close the keypad.
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: End the current call.
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: During a video call, switch to a voice call.
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: Set the device to change the angle and zoom automatically by recognizing and
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tracking people during a video call.
: During a video call, lock the screen.
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Effects: During a video call, apply various effects.
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Camera: During a video call, turn off the camera so that the other party cannot see
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you.
Switch: During a video call, switch between the front and rear cameras.
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Some features may not be available depending on the carrier or model.
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