1. Open a chat with the person you want to call.
2. Click the phone for a voice call or the camera for a video call.
3. Allow your browser to use the microphone (and the camera for video) when it asks.

During the call you can mute the microphone, turn the camera off and hang up. Calls are end-to-end encrypted.

When someone calls you, the Wiply tab where the chat is open rings and shows Answer and Decline; the call also rings in the Narendi app. Group video calls are coming later.