What is WebRTC vs SIP for Voice AI?

WebRTC handles browser-based calls with built-in NAT traversal and free codecs; SIP is essential for PSTN/landline integration in enterprise setups.

Do enterprise Voice AI deployments need both WebRTC and SIP?

Yes, almost always — bridged by an SBC to connect web widgets to phone systems without killing call quality or budgets.

What's the best TURN provider for WebRTC in production?

Twilio NTS for reliability, Coturn for cost — test latency first, as relays can add 50-200ms. Word count: ~950.

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WebRTC vs SIP: The Brutal Realities of Voice AI in Production

In the trenches of enterprise Voice AI, one protocol choice can sink your project. Here's the unvarnished truth on WebRTC vs SIP from deployments that went live.

theAIcatchup Apr 10, 2026 4 min read

Split diagram showing WebRTC browser flow vs SIP PSTN trunking bridged by SBC in Voice AI architecture

⚡ Key Takeaways

Enterprise Voice AI requires hybrid WebRTC-SIP via SBCs; pure plays fail against PSTN. 𝕏
Avoid custom gateways — managed platforms or proven SBCs save weeks and budgets. 𝕏
VAD, latency, codecs differ sharply; test acoustic assumptions early. 𝕏

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#SIP #Voice AI #WebRTC #production deployments

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