16000: Whisper Not Available on Twilio ConferenceERROR: 16000error-16000 page anchorPROGRAMMABLE VOICEERROR Error - 16000error---16000 page anchor Whisper Not Available on Twilio Conferencewhisper-not-available-on-twilio-conference page anchorWhisper is only available on Agent Conference, to create an Agent Conference set it as your default via the portal or choose it via TwiML.