WHMCS - this is a universal solution for hosting companies that allows you to manage customer accounts, automate many actions. A module that is designed to verify the client's phone number when ordering goods or services. A pin code is sent to the number specified during registration, which must be entered to confirm the order. Also, the module can work as a two-factor authentication (both for the client and for the administrator), asking after entering the login and password for a pin code, which is sent via SMS to the phone specified in the profile.
To connect the integration you will need:
If necessary, we will help you obtain all the necessary data.