The 3.14 phone has basically 5 buttons, 4 are intended for dialing and one is for answering. The 4 buttons with numbers allow you to dial sliding them to the left, pushing on the center, or sliding to the right on each button to get the corresponding numbers.
The top button looks like as if it doubles when the speaker is used to answer. If you push it once the transparent display pops out to check caller ID or to make a call. When you receive calls you push it once more in order to answer. When you are over you just close the edge to hang up.
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