Kulatel is a self-hosted voice AI stack — speech-to-text, reasoning, and text-to-speech orchestrated over real-time call audio. No rented platform in between, no per-minute markup, no black box.
Vapi and similar platforms are a fast way to ship a voice agent. Kulatel exists for the calls where we needed more control than a rented platform gives us — and it now runs interchangeably alongside Vapi, per project.
Live calls hand off to a human agent through a real conference bridge, not a blind transfer.
AMD runs without blocking the call, so the agent responds the moment a real person picks up.
Every conference call is transcribed for the deal jacket — searchable, timestamped, attached to the lead.
Twilio usage is tracked per call, per project, so cost-per-lead is a real number, not an estimate.
A dedicated microservice handles the Twilio WebSocket stream end to end, independent of the main app.
Either stack can be selected per project or per dealership — Kulatel isn't a forced replacement.