---
page_type: error
code: 21609
message: "21609: Invalid 'StatusCallback'"
level: ERROR
---

## Error - 21609

### Invalid StatusCallback URL

The `StatusCallback` URL provided is not a valid URL.

#### Possible Solutions

Make sure you submit a fully qualified URL including:

- protocol (http:// or https://)
- hostname
- file path
- properly url-encoded query parameters

Twilio must be able to reach this URL over the public Internet.