Lampline, an open-source way to build phone agents and test them with an AI caller
Sorted AI24 OctLampline is a new open-source project (Apache 2.0) for building AI phone agents on your own machine or servers. It can import agents from Google's Dialogflow CX and CX Agent Studio, and connects to phone lines through Twilio, Telnyx or a SIP trunk. Its Evals tab rings any agent with a phone number, including ones on Vapi, Retell or an old IVR, plays the customer with an AI Test Caller, and grades the call against checks you write. A free mode runs everything locally (Qwen3 4B in Ollama plus local speech models) after a download of about 3 GB; the README claims about $0.02 to $0.17 a call with your own keys, against $0.50. It is a young project, first published on 19 October, and not independently tested.
Why it matters: If you run a phone line with a bot or IVR, the AI Test Caller is the part to try first: script a few hard calls (noise, accents, interruptions) and see where your current agent breaks. Only test agents you own, as the project itself says.
GitHub ↗AI-assisted, reviewed by Sorted AI
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