What - The ability to send an authorization text to users who log into the system in various ways,

Where - Captive Portal, Registration, Internal or External log in

How - When the user tries to log in to the system for the first time via any various way that the user shares their phone number, the system could send the user a text with a random authorization code the the user needs to enter before they can finalize their request. This capability should be completely optional in each block. 

Why - This will confirm that phone numbers being inputted into the system are real and preventing many duplicate records and garbage information from being inputted into the system.