Camera [Q] Phone call landline using android Hangouts app?

I guess google had hinted on introducing voice calling cell and landline numbers via Google Hangouts app on android sometime in May.
I saw some post that described how you could initiate a call using your computer and then continuing with it over your android phone.
Just curious any ideas as to when(or how) you could make calls to US numbers directly using Google Hangouts similar to how it is allowed on iOS?

Sprint Framily C90046363fs
Last four digits of phone number are 1849