Phone-based authentication involves sending a one-time password (OTP) to a user over a separate communication channel (e.g. SMS, MMS, WhatsApp, Facebook Messenger, Viber or even voice) from the IP channel (internet) used by the application, providing security in case the IP channel is compromised.
Read moreWhat is phone Auth in Firebase?
You can use Firebase Authentication to sign in a user by sending an SMS message to the user’s phone . The user signs in using a one-time code contained in the SMS message.
Read moreWhat is phone Auth?
Phone authentication allows users to sign in to Firebase using their phone as the authenticator . An SMS message is sent to the user (using the provided phone number) containing a unique code. Once the code has been authorized, the user is able to sign into Firebase.
Read moreHow do I get Firebase Auth?
Get Started with Firebase Authentication on Websites
Read moreWhat is Firebase Auth?
Firebase Authentication provides backend services, easy-to-use SDKs, and ready-made UI libraries to authenticate users to your app . It supports authentication using passwords, phone numbers, popular federated identity providers like Google, Facebook and Twitter, and more.
Read moreIs Firebase phone Auth free?
All other Firebase Auth features are free to use on all plans .
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