Set up authentication using a Phone Number

Android

1. Add phone to the providers configuration array.
2. See Before you begin and follow the instructions to configure sign-in using a Phone Number correctly.
   Attention: Skip step 2. The dependency for the Firebase Authentication Android library is already declared by the plugin.
3. See Enable Phone Number sign-in for your Firebase project and follow the instructions to enable Phone Number sign-in for your Firebase project correctly.
4. See Enable app verification and follow the instructions to enable app verification correctly.

iOS

1. Add phone to the providers configuration array.
2. See Before you begin and follow the instructions to configure sign-in using a Phone Number correctly.
   Attention: Skip step 2. The FirebaseAuth pod is already added by the plugin.
3. See Enable Phone Number sign-in for your Firebase project and follow the instructions to enable Phone Number sign-in for your Firebase project correctly.
4. See Enable app verification and follow the instructions to enable app verification correctly.

Web

1. See Enable Phone Number sign-in for your Firebase project and follow the instructions to configure sign-in using a Phone Number correctly.