How do I setup and use a Google phone number in the Coaches Console?

Google calls this product 'Voice'. You can set it up here: https://voice.google.com/about 

Then you can take your unique Google Phone Number and, in your Coaches Console system, go to Communication > Settings > section 'Phone number' and enter your Google # in the either the 'Phone Number for Appointment Reminders' field and/or the 'Phone Number to display on website' field, depending on where you want to use it.