May 8th, 2020

Mobile verification can be done via missed call to the given number

This is how you go about doing it

  • If you are building an App that requires a mobile number based authentication, take the user’s phone number as input
  • place a call from your server to the number and stop after one ring
  • Your app will intercept the call and see the callerID to verify it is our call
  • Truecaller has added missed call as a verification mechanism in their API using a similar mechanism