16113: Voice Recording: Cannot download a dual-channel presentation of a mono recording

This warning appears when you request a dual-channel media file for a recording that was stored as mono. Twilio can return a dual-channel download only when the original recording has two channels available.

• The recording was created with recordingChannels=mono on an API call, or with channels="mono" when you started the recording with <Start><Recording>.
• The recording was created with <Record>, which stores the audio as a mono recording.
• The download request included RequestedChannels=2 for a recording that has only one channel available.

• Retry the download without specifying a channel count. If you need to set it explicitly, retry with RequestedChannels=1.
• Review the recording's channel configuration before downloading media. Use the RecordingChannels value from RecordingStatusCallback to determine whether to request one channel or two.
• If you need separate tracks for future recordings, create the recording in dual-channel format by setting recordingChannels=dual on the Call resource or channels="dual" on <Start><Recording>.

• Recordings resource
• TwiML Voice: <Recording>
• TwiML Voice: <Record>