Meet Google Duo, a simple 1-to-1 video calling app for everyone
https://blog.google/intl/en-in/products/meet-google-duo-simple-1-1-video-calling-app-everyone/
WebAug 16, 2016 · Duo is simple from start to finish. To get started, all you need is your phone number and you’ll be able to reach people in your phone’s contacts list. No separate account is required, so you can sign up and start calling in just a few taps. From there, you can instantly begin a video call with a single tap. Fast and reliable.
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