Accessing Live Incoming Call Data during phone ring

I am not sure what we are doing wrong. I am not a developer, but I have had a few developers work on our ring central private application. We use it to receive incoming and outgoing text messages, live call data, and voice mails.

The problem I have is that the incoming calls that come in seem to have some sort of delay. I don't seem to receive the call information until the call has ended. I am thinking I might be using the wrong permissions. What permission is responsible for delivering live call data, so that I can get the call phone number as soon as the first ring?

Here are the permissions that we are using:

Read Messages
Call Control
SMS
Read Call Log
Read Call Recording
Webhook Subscriptions