Hi
Thanks for writing your requirement very precisely !
Thanks for the brief description Here is my Understanding to get on the same page i hope you find the near to the imagination :
1. On Verification Input field User enter Phone number and Click on NEXT button which says "Verify Me". .
2. User will get the missed call for 1 second then another Input field will appear for next step where User has to Enter last 5 digit of that missed call with the button next to it that says "Verify Code".
3. After Verified "Next" button will unlock for (bottom right of wizard content)
It's a EASY task for me Have done this earlier and can integrate API to your website .
**************************************************
My name is Aditya An Application Architect with an IT house in India, sitting with 25 developers/designers under one roof , Having 6+ years of Experience in core Development of .NET , ASP.NET ,C# , SQL 2008 R2 ,2012, ASP.NET, MVC , JQuery , PHP , CSS , HTML , Visual Studio 2015,08,10,12,13
With utmost confidence (that comes from previous history of same work) in providing you the perfect solution in competitive less price. Its is DOABLE for me
Looking Forward to speak with you !
Thanks
Aditya