Hi Frinds
If u r living in tamilnadu..
and u have airtel mobile(9944,9994,9894) u can try this trick for misscall alart *62*+919894035100#
for out of reach
*61*+919894035100#
if not ans
And goto calldivert-if busy-activate to other and put this number +919894035100
it's work for me
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