How some people creat websites like pvapins / smspva
Do they using scripte or they buy real phone number to receive sms for their clients!!
Any one have experience with this kind of websites
They might be using someone else’s API or they have their own system and investment on virtual numbers.
You can using their API
https://github.com/pyCynical/smspva
Or built your own! SMS gateway Just google sms verification php script
!