Make a phone call on Surface Duo Content provided by Microsoft Applies to: Surface Duo Select Product Version All Products You can use Surface Duo for a lot of things—including phone calls. The Phone app is already installed, so you’re ready to start calling. Show all To answer a call To call someone by dialing a number To call a contact To make an emergency call To turn on real-time text (RTT) calls To make calls over Wi-Fi To check voicemailRelated topics Insert a SIM into your Surface Set up a mobile data connection on Surface Duo Connect to Wi-Fi on Surface Duo Last Updated: Sep 8, 2020 Was this information helpful? Yes No Tell us what we can do to improve the article Submit Thanks! Your feedback will help us improve the support experience.