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Outbound hold agent that pauses AI runtime while waiting on hold

A Python code example from Telnyx demonstrates an outbound hold agent that pauses an AI runtime while waiting on hold.

Background

- Telnyx is a communications platform (voice, SMS, SIP trunking) that competes with Twilio to provide programmable telecom APIs. This code example is from their public GitHub repo of developer samples. - The project solves a practical AI deployment problem: when an AI voice agent calls a business (e.g., a bank) and gets put on hold, the AI would normally keep "listening" and burn expensive compute time on hold music or silence. - This Python script pauses the AI inference runtime during the hold period (detected via silence, music, or a "hold" signal) and resumes it when a human speaks again, reducing costs and API waste. - Key components: Telnyx voice API for call control, a local AI model (the example references OpenAI Whisper/STT plus an LLM), and logic to detect hold states from audio cues.

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