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==GSM indication==
==GSM indication==
{{{img_mov|[[Image:GSM indication.gif|right|150px]]}}}
{{{image|[[Image:GSM indication.gif|right|150px]]}}}
*When device doesn't obtain GSM signal, after every 300 seconds period, for the 0.5 second three times will light up RED light and buzzer will make sound simultaneously.
*When device doesn't obtain GSM signal, after every 300 seconds period, for the 0.5 second three times will light up RED light and buzzer will make sound simultaneously.
