Cisco
210-060 · Question #228
Which two explanations of DTMF dialing are true? (Choose two.)
The correct answer is A. DTMF dialing consists of simultaneous voice-band tones generated when a button is pressed on B. The use of DTMF enables support for advanced telephony services. sip-dtmf.html#GUID-A23A02E9-3FD2-4C3A-8ED4-78BDC82AAEAE
Endpoints
Question
Which two explanations of DTMF dialing are true? (Choose two.)
Options
- ADTMF dialing consists of simultaneous voice-band tones generated when a button is pressed on
- BThe use of DTMF enables support for advanced telephony services.
- CDTMF dialing uses INVITE messages to signal when the first digit is pressed in a new call.
- DDTMF dialing consists of a simultaneous digital-band pulse generated when a button is pressed
How the community answered
(53 responses)- A91% (48)
- C6% (3)
- D4% (2)
Explanation
sip-dtmf.html#GUID-A23A02E9-3FD2-4C3A-8ED4-78BDC82AAEAE
Topics
#DTMF#dual-tone multifrequency#voice-band tones#telephony signaling
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