If true, incoming audio is processed for DTMF (dual tone multi frequency)
events. For example, if the caller presses a button on their telephone
keypad and DTMF processing is enabled, Dialogflow will detect the
event (e.g. a "3" was pressed) in the incoming audio and pass the event
to the bot to drive business logic (e.g. when 3 is pressed, return the
account balance).
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2026-04-25 UTC."],[],[]]