---
title: "Discussion on \"What Is a Voice API? Call Lifecycle, Webhooks and Media\" | Hashnode"
description: "Discussion on \"What Is a Voice API? Call Lifecycle, Webhooks and Media\". The three channels, each step of a call, webhook design, media streams and capacity sizing"
url: "https://hashnode.com/posts/what-is-a-voice-api/6af4245de8ec6bd94bee9ef7"
---

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# [What Is a Voice API? Call Lifecycle, Webhooks and Media](https://piyuzz.hashnode.dev/what-is-a-voice-api?utm_source=hashnode&utm_medium=feed)

The three channels, each step of a call, webhook design, media streams and capacity sizing

2d ago · 20 min read · piyuzz.hashnode.dev  
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-   [#webhooks](https://hashnode.com/tag/webhooks)
-   [#api](https://hashnode.com/tag/api)
-   [#telephony](https://hashnode.com/tag/telephony)
-   [#voice-ai](https://hashnode.com/tag/voice-ai)

## Written by

[Piyush Sahoo](https://hashnode.com/@piyuzz)

@piyuzz · Bengaluru, India

  
[View profile](https://hashnode.com/@piyuzz)

Founding Member, Vobiz. Writing about AI voice agents on the real phone network.

I'm a Founding Member at Vobiz, telephony for AI voice agents. I write about where voice agents meet the phone network: SIP, phone numbers, latency, echo, barge-in and everything that breaks on real calls but not in browser demos. More at piyushsahoo.me

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