User's Manual

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3.4.3.3 Button tone
It decides whether you will hear a button tone or not when a
specific button is pressed.
3.4.3.4 Function Key Display
It can select the message when you press the function key(F1~F4)
B e e p
1 2 3 4
B e e p
O N / O F F
S u c c e s s !
F u n c K e y D i s p
1 2 3 4
F u n c K e y D i s p
O F F / M O D E 1 / M O D E 2