---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/21227#article
headline: "21227: Headers portion of SIP URI must be fewer than 1024 chars"
url: https://www.twilio.com/docs/api/errors/21227
inLanguage: en
dateModified: 2025-12-18T21:40:49.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 21227: Headers portion of SIP URI must be fewer than 1024 chars

Log Level: WARNING

## Description

The headers you are sending must be fewer than 1024 characters.