## The WebRTC Illusion
WebRTC allows browsers to stream live video directly to each other peer-to-peer (P2P), completely bypassing backend servers and avoiding all bandwidth charges. However, corporate firewalls and strict NAT (Network Address Translation) configurations often block these direct connections.
### FAQ
**Q: What happens when P2P fails?**
A: The connection silently falls back to a TURN server (Traversal Using Relays around NAT). Your backend takes the video stream from User A and manually forwards it to User B. If 18% of your users are behind strict corporate firewalls, you suddenly owe massive egress fees to your cloud provider for a video service you thought was free.