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I'm building an application with peer-to-peer video calling. So far, I only know WebRTC. Is this sufficient for p2p video calling across the globe if I just have simplest Turn server(s)? By sufficient I mean it is as smooth as a normal video calling services like Google Meet or Zoom. If no, what else should I do to ensure smooth video calling?

Đặng Minh Hiếu
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For P2P calls with a few participants, WebRTC should absolutely be sufficient. WebRTC has evolved so much in the past decade that it's not unreasonable to estimate that most video applications that are not Zoom are built on it.

There are lots of tutorials about building WebRTC apps from scratch (here's one on DEV, and I appreciate everything Karl Stolley writes).

The only question is if you need to build the WebRTC logic from scratch. Jitsi is a good open-source library. There are other solutions with free tiers like Twilio, Agora, or Daily (full disclosure, where I work).

Good luck!

Kimberlee Johnson
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