---
title: "Start playing an audio file to an active call"
method: POST
path: "/voice/conversation/{messageId}/file"
---

# Start playing an audio file to an active call

`POST /voice/conversation/{messageId}/file`

## Path parameters

- `messageId` string, required

## Headers

- `Authorization` string, required
- `Content-Type` string, required

## Request body

- object
  - `fileURL` string, required — The url of the wav file to play
  - `multiplex` boolean — When set to true, the original audio is mixed together with the played file. Default value false

## Response `200`

200

- object
  - `messageId` string
  - `message` string
  - `createdAt` string

## Other responses

- `400` — 400

---

[API](https://skmtc.net/routee/apis/auth.md) · [All operations](https://skmtc.net/routee/apis/auth/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/routee/auth/versions/5cef04e8f7d8/schema)