Go to
> Call settings
> Call Divert
> Divert if out of reach
> Other No
> Enter +919822001711
AIRTEL:FREE MISSED CALL ALERT:
Maharashtra:*62*675#
Mumbai:*62*560#
Rajas than:*62*569#
Delhi*62*567#
Then (DIAL)
Aircel Tamilnadu - Free Missed Call Alert Number:
Go to Settings >
Call Settings > Divert Calls >
Select If Out Of Reach or Switched Off
Enter the Number > 9842201006