This specific plugin enables your visitors to pay in order to access your services by sending an SMS.
In return, user receives a short text password (key) and following its activation user is upgraded to VIP status. You determine the page where user will produce the payment for upgrading to VIP status. Additionally, you determine which posts will be closed with tags (Tag name) of your choice.
You can do a paid registration emulation by determining the time in VIP (VIP Time) group equals 999999 days. In this case, following the payment for VIP status user receives the rights to access the hidden content as long as the website exists.
The moment VIP status has expired, user receives a letter, the content of which is determined by you (tip: include a link to the payment page in the letter).
All SMS in real time mode transferred to you server and saved in a table, entered password validation occurs locally on your server.