[RileyJames]

Actually they use it even if you call them. Rather than do the “name, dob, etc”, they send a push notification to the app and require you to accept it.

Which phone verifies you to continue the conversation.

And I guess you’re right. The receive sms and read out the code is similar. Tho this doesn’t have a code. It’s an in app push notification which you simply accept (or reject if not expecting it)