Echo Turn Detection is a real-time timing layer that transitions voice agents from rigid, walkie-talkie-like interfaces to natural, human-like dialogue. By analysing linguistic patterns rather than simple silence timeouts, Echo delivers up to 96.2% turn-taking accuracy and 25x fewer missed turn endings, allowing users to pause, hesitate, interrupt, and backchannel naturally. The Turn-Taking Challenge In a voice agent pipeline, speech recognition gets most of the attention. But knowing what th

Escalate from your AI voice agent to a human the right way with VideoSDK Warm Transfer—brief the supervisor with an AI summary before the caller connects.

Add human escalation to your AI voice agent with VideoSDK Call Transfer—forward a live SIP call to any number with no disconnect and no redial.

The global voice AI market crossed $22B in 2026. We compare VideoSDK, Vapi, LiveKit Agents, Retell AI, ElevenLabs, Deepgram, and Bland AI across latency, pricing, managed inference, and real-world developer use cases.

VideoSDK, Agora, Twilio, Vonage, and Zoom Video SDK compared on pricing, AI features, latency, interactive features, and developer support. Find the best video SDK for your 2026 project in under 5 minutes.

API keys are static app identifiers. API tokens are short-lived, user-specific credentials with scopes and expiry. Learn which to use and how VideoSDK combines both in a secure real-time architecture.

Build a real-time Voice AI agent in Flutter without dealing with WebRTC, speech-to-text, or audio streaming complexity. With VideoSDK, you can configure your agent, run a starter app, and launch a working voice AI experience across Android, iOS, and desktop in minutes.

A step-by-step developer guide to building a telehealth app that complies with Brazil's LGPD and CFM Resolution 2.314/2022, using VideoSDK Flutter and React SDKs with verified E2EE and geo-fencing setup.