A phone line for your Python process. Async SIP/RTP engine for AI voice agents.
Project description
Dialplane
A phone line for your Python process.
Dialplane is an async, pure-Python SIP/RTP engine built for AI voice agents. Connect any SIP trunk on earth directly to your Python code — answer and place real phone calls, stream call audio as PCM frames, and plug into agent frameworks like Pipecat — with no middleman cloud, no per-minute streaming fees, and no separate media server.
Status: pre-release. This package is a placeholder while the engine lands. The first usable release is under active development.
Why
Today, putting an AI agent on a real phone number means routing audio through
a metered websocket cloud or running a heavyweight media server cluster.
Dialplane's goal: pip install dialplane, point it at a SIP trunk, and your
agent is on the phone — self-hosted, wideband audio, audio never leaves your
box.
Planned
- Async SIP (RFC 3261) + RTP engine, zero required dependencies
- Trunk registration (digest auth) and IP-auth modes
- Inbound answer / outbound dial with an async-first API
- G.711, G.722, and Opus; DTMF (RFC 2833); NAT traversal (STUN, symmetric RTP)
- First-class Pipecat transport; adapters for other frameworks
- Fully-local voice agent examples (faster-whisper + Ollama + Kokoro)
License
Apache-2.0
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