beta

const (
	DtmfEventOne   DtmfEvent = "1"
	DtmfEventTwo   DtmfEvent = "2"
	DtmfEventThree DtmfEvent = "3"
	DtmfEventFour  DtmfEvent = "4"
	DtmfEventFive  DtmfEvent = "5"
	DtmfEventSix   DtmfEvent = "6"
	DtmfEventSeven DtmfEvent = "7"
	DtmfEventEight DtmfEvent = "8"
	DtmfEventNine  DtmfEvent = "9"
	DtmfEventZero  DtmfEvent = "0"
	DtmfEventStar  DtmfEvent = "*"
	DtmfEventPound DtmfEvent = "#"
	DtmfEventA     DtmfEvent = "A"
	DtmfEventB     DtmfEvent = "B"
	DtmfEventC     DtmfEvent = "C"
	DtmfEventD     DtmfEvent = "D"
)