Google has added yet another feature to regular hangouts from their Hangouts with Extras platform.
Now any Google Plus user can make phone calls from a hangout. Calls to USA and Canada are free. Calls to other countries are charged at nominal rates.
Google representative Vincent Paquet spoke about this feature addition:
In the past few months, we’ve graduated two widely-used features from Hangouts with extras to the main Hangouts experience: screensharing and Google Docs. Today, we’re excited to announce that we’re graduating a third and very popular feature — the ability to call a phone number from Hangouts. Calls to the US and Canada are free, and international calling rates are super, super low.