Google Tests Google My Business Call History in the US for Calls from Location Panel
https://twitter.comI am assuming this is probably something that you get for the subscription option of GMB. Call History for in Google My business, get you a tracking number from Google for your listing to see call history and follow up.
According to the documentation
You can use call history to keep track of phone calls from your customers on Google Search and Maps. Your calls are all in one place to help you respond to missed calls and stay engaged with your customers. These calls may make it easier for you to find and do business with customers who found your business through Google. Any calls you get from your Business Profile will start with a short message that lets you know it’s from Google.
Call history in Google My Business (GMB) is currently in beta and only available for a select group of businesses in the US only.
When a customer uses the “Call” button on your Business Profile, their calls show up in the “Calls” tab on your Google My Business app. From this tab you can find recent calls, missed calls, and more.
Once call history is on, customers will connect to you through a forwarding number instead of through the number on your profile. At the start of a call, you’ll get an automated message that says, “Call from Google.”
