Custom Telephony Provider

The Custom Telephony Provider API provides operations to manage your custom telephony providers and their credentials. Creating a custom telephony provider enables you to use the Phone authenticator. See Use your own telephony provider to learn more about using your own telephony provider.

To create a custom telephony provider, you must first create an account with a supported telephony provider. After you have an account, you can use this API to add and then manage your provider credentials. Twilio and Telesign are the only supported telephony providers at this time.