Chert enables developers to deploy AI video agents that can answer and place FaceTime calls in a few lines of code. Unlike voice-only agents, Chert uses the caller's camera feed to provide visual context, allowing agents to respond to what callers are physically showing. Users can configure the agent's prompt, model, voice, avatar, and framing, then assign it to a provisioned FaceTime line. The platform supports use cases such as remote support, field service, telehealth intake, guided onboarding, and visual inspections.