When you’ve found someone that fits the bill, tap their number and the call will begin. Anyone with Duo installed appears at the top of the list, while all the others have an Invite button to the right of their number. Making a call involves tapping the Video Call button on the main screen and then selecting someone from your contacts list. These include whether Knock Knock is activated or not, the ability to limit mobile data use, the option to unregister your phone number, plus a list of other people’s numbers you’ve blocked. In here you have a small amount of things you can change (Google seems to be keeping things deliberately simple and that’s a good thing). The only other notable selection available is the three dot icon in the top right corner that gives you access to the Settings menu. When you launch Duo now you’ll be presented with a live image of yourself taking up two thirds of the screen, accompanied by a large Video Call button in the bottom third. Grant all of these and you’re ready to start using Duo. The app also requires various permissions to use functions such as your camera, contacts, and audio so that it can make and receive calls.
This will generate a text message with a code that you use to confirm your identity.
Once it’s installed and launched for the first time you’ll be asked to enter your phone number. Depending on your platform of choice you’ll need to either visit the Apple App Store or Google’s Play Store to download Duo.
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