As you know Google’s Hangouts service enables you to keep in touch. Message friends, start free video or voice calls, and hop on a conversation with one person or a group.

After GIF support and video call up to 10 friends and many more.

Hangout is brining a new feature that will allow the user to do video call with out having an Hangouts account or I can say Google account.

How to Use

All users will have to do now is click on a link to the Hangout, type in their name in a pop-up box, and then “Request to Join.”

Meeting organizers will receive a prompt to accept or deny entry to users who are trying to join a Hangout. They will also have access to tools to mute or remove participants if necessary. That’s it !!

Joining a meeting should be as easy as walking into a room. That should be the case whether you’re meeting in person, or face-to-face over video. This week we’re rolling out an update to Google Hangouts that makes joining a video call as simple as clicking a link in an invitation. No filling in forms, no need for a Google account, just simple, easy access to meetings.

Connect with teammates and get things done, while maintaining the control and security you need in a work environment.

Say you’re a business about to talk through new product plans with your supplier, and you decide it’d be great to also get the thoughts of a key customer. No problem.

Invite your external guests with Google Calendar They click a link in the event description and fill in their name In order to help give you control and security over your meetings, you’ll get a prompt to accept / deny their entry whether you’re using web, mobile or Chromebox for meetings.
With Hangouts security features like locking video meetings to only people within an organization and muting and ejecting participants, there’s always the right level of security to match your organisation’s needs.

Source : Google for work