16101: Voice Recording : Unavailable because duration is too short

Twilio returns this warning when a voice recording is shorter than the minimum duration required for the recording workflow. With <Record>, the final duration can be shorter than the time spent recording when Twilio trims leading or trailing silence or when no RTP audio data is received during recording.

• The caller ended the recording before enough audio was captured, such as by hanging up, pressing a finishOnKey digit, or reaching maxLength.
• trim-silence removed leading or trailing silence, which made the final recording shorter.
• Twilio did not receive RTP audio data during the recording, so the effective duration was shorter than expected.

• Keep the caller on the line long enough to capture audio that meets your minimum duration requirements.
• Review timeout, finishOnKey, and maxLength so the recording does not end before you capture enough audio.
• Set trim to do-not-trim if you need to preserve leading and trailing silence in the final recording.

• TwiML Voice: <Record>
• Recordings resource