Artfone F20 - Phone Features and Operations; LED Indicator Lights; Powering On and Off; SOS Functionality

There are three LED lights in the
front,red one is for incoming calls,
green one is for messages,white
one twinkles when charging
battery.
How to power on or off ?
Press red button for 2.5 seconds for on
or off.
How to use SOS function ?
SOS setting->
1.Status: on or off
2.SOS numbers:This is very important,you
can set no more than 5 telephone numbers
here,when user press SOS button, the
phone will dial the numbers settled one by
one automaticly.
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