---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/64111#article
headline: "64111: ConversationRelay: TTS provider service error"
url: https://www.twilio.com/docs/api/errors/64111
inLanguage: en
dateModified: 2026-03-11T22:03:37.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 64111: ConversationRelay: TTS provider service error

Log Type: APPLICATION

Log Level: ERROR

## Description

Tokens could not be converted to speech and played because there was an error in the service of the TTS provider.

### Possible causes

Operational abnormality in the service of TTS provider

### Possible solutions

Monitor the situation and/or switch over to use a different TTS provider temporarily