What is the Verification of a Telephone Number?
TWO - FACTOR AUTHENTICATIONHow can you Verify Telephone Numbers
Mobile Number Verification
Then the user enters the received PIN to the application/website in order to complete an action such as logging in or completing a payment.
Landline Number Verification
In this case, the user receives a call during which a recorded message with the PIN is played. After the user hears the PIN, he/she can enter it to the application/website and complete his/her verification.