In addition to the standard registration form, the instructions for payment through SMS are added. When user sends SMS according to the given instructions, he receives
a password in reply SMS. It is possible to complete the registration process, only upon entering personal details and the password sent previously.
On smscoin.net website, in sms:key service settings you can determine the time limit for this password, as well as the number of its activations.
Plugin designed for CMS Cotonti version 0.6.23