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Building an Internet-Connected Phone with PeerJS - Web APIs | MDN
This is an intermediate level tutorial; before attempting it you should already be comfortable with:
Before you get started, you'll want to make sure you've installed node and Yarn (the instructions in later articles assume Yarn, but you can feel free to use npm or another manager if you'd prefer).
Note:
If you learn better by following step-by-step code, we've also provided this tutorial in code , which you can use instead.