> we decided to build our infrastructure on top of the telecom infrastructure because it was ubiquitous. I am not very familiar with Authy, but I have built pi

> we decided to build our infrastructure on top of the telecom infrastructure because it was ubiquitous. I am not very familiar with Authy, but I have built pin-code 2FA solutions using Twilio. Based on your comments, I am not sure the point of Authy if it is easy to build 2FA except TOTP using yesterday's Twilio.