---
title: "Delete a SIP trunk"
method: DELETE
path: "/v1/voice/trunks/{trunk_id}"
tags: ["voice-trunks"]
---

# Delete a SIP trunk

`DELETE /v1/voice/trunks/{trunk_id}`

## Request

- Base URL: `https://us1.platform.bird.com`
- URL: `https://us1.platform.bird.com/v1/voice/trunks/{trunk_id}`
- Auth: one of:
  - HTTP bearer
  - API key in cookie `bird_session`

Removes the SIP trunk. Calls already in progress on this trunk are not affected. After deletion, new calls cannot use the trunk. Historical leg records retain the trunk reference. The generated domain is not reused.

## Headers

- `Idempotency-Key` string
- `X-Workspace-Id` string
- `X-Organization-Id` string

## Response `204`

SIP trunk deleted.

## Other responses

- `400`: Bad request
- `401`: Authentication required
- `403`: Insufficient permissions
- `404`: Resource not found
- `409`: Resource conflict
- `422`: The request has invalid field values, violates a business rule, or carries a query parameter the endpoint does not declare. Field validation errors use `type: validation_error` and include the affected fields in `details`. Business-rule errors identify the failed rule in `type`.
- `429`: Rate limit exceeded
- `500`: Internal server error
- `503`: The service is temporarily unavailable. If `Retry-After` is present, wait for that delay before retrying; otherwise, retry with exponential backoff. Reuse the same idempotency key and request when retrying a mutation.

---

[API](https://skmtc.dev/messagebird/apis/bird-api.md) · [All operations](https://skmtc.dev/messagebird/apis/bird-api/llms.txt) · [OpenAPI document](https://skmtc.dev/messagebird/apis/bird-api/revisions/6dfce1179799?raw)