Samsung GT-C5180 User Manual page 74

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When speaking on the device:
Hold the device upright, as you would with a
traditional phone.
Speak directly into the mouthpiece.
Avoid contact with your device's internal antenna.
Touching the antenna may reduce the call quality or
cause the device to transmit more radio frequency
than necessary.
Internal antenna
Hold the device with a relaxed grip, press the keys
lightly, use special features that reduce the number
of keys you have to press (such as templates and
predictive text), and take frequent breaks.
74

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