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Class TelephonyDtmf (2.47.0)
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DTMF <https://en.wikipedia.org/wiki/Dual-tone_multi-frequency_signaling>__
digit in Telephony Gateway.
Enums
Name Description
TELEPHONY_DTMF_UNSPECIFIEDNot specified. This value may be used to indicate an absent digit.
DTMF_ONENumber: '1'.
DTMF_TWONumber: '2'.
DTMF_THREENumber: '3'.
DTMF_FOURNumber: '4'.
DTMF_FIVENumber: '5'.
DTMF_SIXNumber: '6'.
DTMF_SEVENNumber: '7'.
DTMF_EIGHTNumber: '8'.
DTMF_NINENumber: '9'.
DTMF_ZERONumber: '0'.
DTMF_ALetter: 'A'.
DTMF_BLetter: 'B'.
DTMF_CLetter: 'C'.
DTMF_DLetter: 'D'.
DTMF_STARAsterisk/star: '\*'.
DTMF_POUNDPound/diamond/hash/square/gate/octothorpe: '#'.
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Last updated 2026-03-31 UTC.
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