Is browser calling safe? How WebRTC calling works
Making a real phone call from a browser tab can feel surprising the first time. But it runs on WebRTC — the same standard that powers video meetings, support chats, and calling features in apps used by billions of people. It is well established and built with security in mind.
What is WebRTC?
WebRTC (Web Real-Time Communication) is an open standard supported by every major browser. It lets a web page capture your microphone and send audio in real time. For calls to regular phones, a provider bridges that browser audio to the normal phone network, so the person you call just receives an ordinary call.
Why it is safe to use
- Encrypted by design: WebRTC media is always encrypted in transit — there is no unencrypted mode.
- Permission-based microphone access: the browser asks before any site can use your mic, and you can revoke it anytime.
- Nothing to install: no app means no extra software with deep system access on your device.
- Pay-as-you-go limits exposure: with a small prepaid balance, there is no card charged per call and no surprise bill.
How Hyallo uses it
Hyallo uses WebRTC to connect your browser to landlines and mobiles in 200+ countries over an encrypted link, then onto the regular phone network. You sign up with just an email, see the exact per-minute rate before you dial, and your first call is free. Try a destination:
