machineDetectionTimeout

The number of seconds that Twilio should attempt to perform answering machine detection before timing out andreturning AnsweredBy as unknown. Default is 30 seconds.
Increasing this value will provide the engine more time to make a determination. This can be useful when DetectMessageEnd is provided in the MachineDetection parameter and there is an expectation of long answering machine greetings that can exceed 30 seconds.
Decreasing this value will reduce the amount of time the engine has to make a determination. This can be particularly useful when the Enable option is provided in the MachineDetection parameter and you want to limit the time for initial detection.
Check the Twilio docs for more info.
@default 30