Why Phone number verification services will fail in India?
Update: I have been pondering over some posible solution for this, and the primary reason for concern for me here was how would businesses verify phone numbers authentically in India considering both approaches look flawed. After some basic hacking and testing at my end, I have a probable solution which seems to be working for India.
Current Flaw in Approach 2 (Similiar to ZipDial):
Currently, the Caller ID can easily be spoofed to the Regular phone numbers (080349xxxx) like the ones used by ZipDial, using any VoIP service, and it is very difficult for the system to detect the spoofed ID. However the caller id cannot be spoofed through a regular phone connection from within India.
This, got me thinking, if there could be a way to block VoIP services from reaching the numbers, then Approach 2 could very well get the job done.
