Lisfinity has a built-in option with which you allow registration and through the phone number after which your members receive an SMS code that they enter as a verification code and after confirmation become members of the website.
It is an exceptional method for stable classified ads with which they confirm their authority and reliability with visitors.
Please note that the Twillio service is paid for (find out more on the twillio.com website). However, when you reach a certain level of business, Lisfinity SMS verification is ready for business growth.
With Twilio SMS verification you can setup your website trust on the next level.