---
title: "Languages, accents and voices in CallWhiz AI"
description: "CallWhiz AI covers 30+ languages with code-switching mid-sentence, supports regional accents within a language, and offers a voice library or a custom voice cloned for your brand."
url: "https://callwhiz.ai/docs/languages"
updated: "2026-09-21"
---


# Languages, accents and voices in CallWhiz AI

One CallWhiz AI agent covers 30+ languages and follows the caller turn by turn when they switch language mid-sentence. A language not yet covered can be added, typically in three to four weeks.

**In short:** One agent covers 30+ languages with code-switching mid-sentence, rather than a separate deployment per market.

## Definitions

- **Code-switching:** A caller changing language mid-sentence. The agent follows, because the language of each reply follows the caller turn by turn rather than being pinned at the start of the call.
- **Custom voice:** A voice cloned for your brand, used instead of a voice from the library.

## What it does

- Callers switch language mid-sentence and the agent follows.
- Regional accents and dialects are supported within a language, not flattened into one.
- A library of voices to choose from, or a custom voice cloned for your brand.
- A language we do not yet cover can be added, typically in three to four weeks.

## How it works

The language of the reply follows the caller turn by turn; it is not pinned at the start of the call.

## Related questions

**Which languages does CallWhiz AI support?** CallWhiz AI agents cover 30+ languages, follow the caller when they switch language mid-sentence, and support regional accents and dialects within a language rather than flattening them into one. A language not yet covered can be added, typically in three to four weeks.

## Related

- [How CallWhiz AI agents sound like a person on the phone](https://callwhiz.ai/docs/sounds-like-a-person)
- [Connecting CallWhiz AI to your phone lines over SIP](https://callwhiz.ai/docs/telephony)