We reported earlier this year that Google has plans to eventually roll Google Voice’s features into its Hangouts service and retire the former product, and we’re slowly seeing that transition play out now. Google’s Alex Weisen, who works on Google Voice, shared last night in a Google+ post that they’re making calling via Hangouts an option from the Google Voice website. Furthermore, the functionality will not require a Google+ account to work either. The option appears to be live on the Google Voice web interface now.
Here’s a screenshot of the web interface now with calling from Hangouts: