rasonyang/ai-native-callcenter

An open-source call center where the AI is the default answer, not an add-on.

Calls arrive at FreeSWITCH and are answered by a voice model over a speech-to-speech connection the application terminates itself. The model talks; a flow steers the conversation and decides when a person is needed. When one is, the caller is transferred into a real queue where real agents are waiting, their SIP leg held by a companion Chrome extension. Everything the two halves do lands in one call record.

It is one Go binary — REST API, event stream and the whole web interface inside it — plus PostgreSQL and FreeSWITCH.

Answers with a model, not a menu. The AI leg is a SIP endpoint inside the application: FreeSWITCH bridges the caller to it and audio goes straight to the provider — G.711 passed through byte for byte where the provider accepts it, so nothing decodes or resamples on the way.

Steers without scripting the conversation. The model owns the dialogue; the flow owns the phase. A phase carries instructions and a list of tools the model may use; transitions fire on tool results. A phase may also carry a line of its own — a greeting, a hand-over script, a goodbye — which the bot is meant to say as written rather than paraphrase: doubao is handed the words to speak, the other four providers are instructed to repeat them word for word. The built-in tools may refuse — "the queue is closed" is something to talk about, not an error — and the persona, the rules and the bot's voice are published and versioned together.