Three tools that share one engine:

• ringo-phone — a terminal softphone: manage SIP accounts and place calls without leaving the keyboard.
• ringo-flow — a telephony scenario test runner: write call flows as JavaScript or TypeScript and run them headlessly in CI.
• ringo-mcp — an MCP server that gives LLM agents a telephone: SIP agents as named tools, driven over stdio.

The source is on GitHub.

_{For tooling/agents: llms.txt indexes the docs, and the ringo-flow scenario API is available as TypeScript definitions (.d.ts). The deprecated Rhai frontend also ships .d.rhai definitions.}