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vox CLI + bridge server that connects Twilio Media Streams (PSTN phone calls) ↔ OpenAI Realtime (speech-to-speech) and lets the voice model call back into your local agent via tools. This repo is intentionally “thin glue”: WebSocket proxying, barge-in/interrupt handling, logging, and a minimal tool adapter. What you get : HTTP endpoint that returns TwiML and a WebSocket endpoint Twilio streams audio to. : outbound calling via Twilio REST to connect a call to your running . OpenAI Realtime session configured for G.711 μ-law passthrough () so there’s no resampling/DSP required. tool that can call: an HTTP endpoint (), or a local subprocess (, JSONL request/response). Requirements Node.js = 22 A public HTTPS URL to your laptop (Twilio needs to reach and ). works fine. OpenAI API key Twilio account + a phone number (for PSTN calling) Setup Fill in at least: (the public HTTPS base URL that maps to your local server, e.g. your ngrok URL) Run Start the bridge: Smoke check: Inbound calls (recommended dev loop) Point your Twilio Phone Number’s “A call comes in” webhook to: When you
| Stars | 76 |
| Forks | 16 |
| Language | TypeScript |
| Category | AI Tool |
| License | MIT |
| Quality Score | 69.5642921456516/100 |
| Last Updated | 2026-07-02 |
| Created | 2025-12-13 |
| Platforms | cli, node |
| Est. Tokens | ~14k |
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vox is Let's your agent run phone calls. It is categorized as a AI Tool with 76 GitHub stars.
vox is primarily written in TypeScript. It covers topics such as call, cli, typescript.
You can find installation instructions and usage details in the vox GitHub repository at github.com/steipete/vox. The project has 76 stars and 16 forks, indicating an active community.
vox is released under the MIT license, making it free to use and modify according to the license terms.
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