16104: Voice Recording: Unavailable due to encryption failure

This error means Twilio could not store a recording because public key encryption failed. It applies only when Voice Recording Encryption is enabled. When this happens, Twilio deletes the recording file, sets the Recording resource Status to failed, returns ErrorCode 16104, and leaves EncryptionDetails null.

• No public keys are available on the account.
• An intermittent Twilio system issue interrupted encryption.

• Create a Twilio Public Key resource, then enable Voice Recording Encryption in Programmable Voice > Settings and select the key you want Twilio to use.
• Review the notification in the Debugger so you can confirm whether the failure was caused by public-key inaccessibility or an internal system issue.
• After you fix the public-key configuration or the service issue clears, record again. The failed recording file is deleted and is not available for access.

• Voice Recording Encryption
• Recordings resource