Hello Guys,
I have recently developed a wordpress plugin for implementing two factor authentication with missed call based tokens. The basic purpose is to build authentic user base ( by validating user's phone number but WITH MISSED CALL )
Here is how it would work.
1. User tries to signup / login / comment at abc.com
2. abc.com sends a missed call ( calls user and auto cuts the call)
3. User is asked to enter the caller id from which he / she received a missed call.
4. User enters the missed call number and thus verification done.
Here is a live demo of the same.
http://madmimi.com/p/c0b695/preview
Please provide your feedback and suggest me improvements / comments