---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/15002#article
headline: "15002: Call Progress: Queue Timeout"
url: https://www.twilio.com/docs/api/errors/15002
inLanguage: en
dateModified: 2026-03-11T18:38:39.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 15002: Call Progress: Queue Timeout

Log Level: ERROR

## Description

A callback request timed out in the callback queue.

### Possible causes

* Your application is not responding to Call Progress Events in a timely manner leading to queued callbacks expiring before they are sent.
* There was a network disruption between Twilio and your web server.

### Possible solutions

* Please ensure your application is responding to callbacks in a timely manner.