openring

OpenRing is a self-hosted voice AI agent server with a Vapi-compatible API. Existing clients point at a different base URL and keep working, and an import tool copies an account in one click. Phone agents and receptionists answer and place calls over Twilio, Telnyx, Plivo, Vonage or any SIP trunk.

The stack runs on a local computer or a server with provider keys supplied by the operator, so keys, calls and transcripts stay on the machine and no telemetry is collected. A bundled Kokoro voice supports a first test call without a phone number, and settings live in a generated configuration file.