voicemailDetection: { provider: "twilio", voicemailDetectionTypes: [ "machine_start", "machine_end_beep", "machine_end_silence", "unknown", "machine_end_other" ], enabled: true, machineDetectionTimeout: 15, machineDetectionSpeechThreshold: 2500, machineDetectionSpeechEndThreshold: 2050, machineDetectionSilenceTimeout: 2000 }