Public Beta Caveats and Limitations

General Limitations and Caveats

• As a Public Beta product, Voice Intelligence is currently not included within Twilio’s helper libraries. You will need to make requests directly against the API while the product is in Public Beta.
• Voice Intelligence is not PCI or HIPAA compliant.
• Encrypted recordings are not supported.

Transcripts App

• In past pre-release documentation, the Transcripts App was called Discovery. The old name is still used in some places, such as app retrieval URLs.
• Transcripts are indexed and available for search for 90 days.
• Search terms are linked with the OR operator. For example, macaroni salad will match transcripts that have macaroni OR salad).

Transcription

• The following limitations apply when fetching media stored in a third-party location (specified by a MediaUrl).
  • Currently, Voice Intelligence does not send an X-Twilio-Signature header for media fetch requests. As a result, media stored in Twilio Assets needs to be made public.
  • If you use external recordings, Basic authentication on MediaUrls is not supported. If you store the recordings on S3, use a presigned URL. And when storing them on Azure Blob Storage, use a Shared Access Signature (SAS).
  • MediaUrls that respond with a HTTP status code that is not a 200 will result in a transcription request that does not complete.
  • Requests to fetch third-party media are performed exactly once. There is currently no retry behavior.
• Voice Intelligence does not perform speaker diarization on recordings. The use of mono recordings will result in lower transcription accuracy.
• Recordings that are under two seconds in length are not transcribed.
• Only up to two Participants can be overridden in the Channel object of the Transcript resource.
• Voice Intelligence will only process recordings or 3rd party media that are under 1GB.

Language Operators

• Pre-built Language Operators cannot be run on a specific channel of a recording.

Transcription Viewer

• In past pre-release documentation, Transcription Viewer was called Annotator or Conversation Viewer. The old name is still used in some places, such as app retrieval URLs.