# Chert FaceTime - [Introduction](https://docs.facetime.trychert.com/introduction.md): FaceTime, made programmable. - [Quickstart](https://docs.facetime.trychert.com/quickstart.md): Go from zero to an AI persona answering FaceTime in about 10 minutes. - [Dashboard Guide](https://docs.facetime.trychert.com/dashboard.md): Understand the operational home for your Chert project. - [Authentication & API Keys](https://docs.facetime.trychert.com/authentication.md): Authenticate project-scoped server requests safely. - [Core Concepts](https://docs.facetime.trychert.com/core-concepts.md): The durable resources behind every FaceTime experience. - [FaceTime Audio vs. Video](https://docs.facetime.trychert.com/audio-video.md): Choose the right media experience for each call. - [Model 1: Assistants](https://docs.facetime.trychert.com/assistants.md): You define the persona; Chert runs the entire experience. - [Model 2: Hosted Sessions](https://docs.facetime.trychert.com/hosted-sessions.md): Chert hosts the room; your participant joins it. - [Model 3: Bring Your Own Room](https://docs.facetime.trychert.com/bring-your-own-room.md): You host the room; Chert joins it as the FaceTime gateway. - [Calls API Reference](https://docs.facetime.trychert.com/calls-api.md): Inspect call records and rollout metadata. - [Webhooks](https://docs.facetime.trychert.com/webhooks.md): Receive signed call lifecycle events. - [Errors & Failure Semantics](https://docs.facetime.trychert.com/errors.md): Every failure is named and machine-readable. - [Limits & Operational Guarantees](https://docs.facetime.trychert.com/limits.md): Capacity, latency, readiness, and data behavior. - [Security](https://docs.facetime.trychert.com/security.md): Short-lived credentials, signed events, and scoped access. - [FAQ](https://docs.facetime.trychert.com/faq.md): Common product and integration questions.