17566: Transcription request rejected by the provider

The transcription provider rejected the request as invalid, so Twilio could not transcribe the audio. The transcription has been marked as failed. Twilio doesn't retry this error, because the same request would be rejected again.

• The language in your transcription configuration isn't supported by the selected provider.
• Another setting in your transcription configuration isn't valid for the selected provider.

• Check that the language in your transcription configuration is a supported language code.
• Update the transcription configuration, and then submit the transcription request again.
• If the configuration is valid and the error persists, contact Twilio Support.

• Transcribe a Twilio Recording
• Transcribe an external recording