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Which of the following are SIP methods that can be used to pass DTMF tones? (Choose 3 answers)
Suggested Answer: B, D, E
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http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/sip/configuration/12-4t/sip-12-4t-book/voi-sip-dtmf.html#GUID-0E228A53-4405-4730-8D54-B37979E69A8B
39 comments · newest first
MA
Madelyn
11 months ago
Not sure about the in-band method being reliable these days.
GR
Gracia
11 months ago
Totally agree, the MESSAGE method is a solid choice too!
GE
Georgeanna
11 months ago
Wait, can you really use the UPDATE method for DTMF?
AS
Ashton
12 months ago
I think the INFO method is also used for DTMF.
LO
Lorrine
12 months ago
RFC 2833 is definitely one of the methods!
JE
Jessenia
1 year ago
I feel like the in-band method is less common, but I think I remember it being part of the options. I hope I got that right!
EL
Elvera
1 year ago
I practiced a similar question last week, and I believe the MESSAGE method is used for DTMF tones, but I’m a bit hazy on the specifics.
EL
Elly
1 year ago
I think the RFC 2833 method is definitely one of the answers, but I can't recall if the INFO method is also valid.
IS
Isaac
1 year ago
I remember studying the different methods for DTMF tones, but I'm not sure if the UPDATE method is one of them.
FL
Florinda
1 year ago
I'm not entirely sure about this one. I know there are different ways to handle DTMF tones, but I'm having trouble remembering the specific SIP methods. I'll need to carefully read through the options and try to eliminate the ones that don't seem right.
MO
Mose
1 year ago
Okay, let me think this through. The in-band methods encode the DTMF tones directly in the RTP packets, so that's A and B. For the out-of-band, I believe it's the INFO method, so that's E. I'm pretty confident in those three answers.
AN
Anjelica
1 year ago
Hmm, I'm a bit confused on this one. I know there are in-band and out-of-band methods, but I'm not sure which specific SIP methods are used. I'll have to review my notes to make sure I get this right.
AN
An
1 year ago
I'm pretty sure the in-band methods are A and B, and the out-of-band method is E. I'll double-check the details, but I think those are the three correct answers.
RE
Ressie
2 years ago
B, D, and E. Hey, at least I'm not trying to encode DTMF tones in Morse code or something. That would be just plain silly.
AD
Adelle
2 years ago
Definitely, it's much more efficient to use the SIP methods.
LA
Lasandra
2 years ago
I agree, using Morse code would be a bit ridiculous.
JO
Johna
2 years ago
Yeah, those are the ones used for passing DTMF tones.
RI
Rima
2 years ago
I think B, D, and E are the correct methods.
CH
Chuck
2 years ago
B, C, and E. Gotta love those DTMF tones. They're like the secret language of telecommunication nerds.
MO
Mozell
2 years ago
Hmm, B, D, and E. Wait, did I just choose the wrong answer on purpose to mess with the exam? Oops, my bad.
LA
Lavina
2 years ago
Viva: It's okay, just remember for next time. B, D, and E are the correct ones.
AN
An
2 years ago
User 3: Oops, I chose A instead of B. I got confused with the in-band methods.
VI
Viva
2 years ago
User 2: Yeah, those are the correct methods for passing DTMF tones.
JO
Josphine
2 years ago
User 3: Don't worry, mistakes happen. Just make sure to double check next time.
AV
Avery
2 years ago
User 1: I think the correct answers are B, D, and E.
GL
Glynda
2 years ago
User 2: Yeah, those are the correct methods for passing DTMF tones in SIP.
HE
Hershel
2 years ago
User 1: I think the correct answers are B, D, and E.
FE
Felix
2 years ago
I'm not sure about D, but I think A is definitely not a valid method for passing DTMF tones.
LE
Leandro
2 years ago
I agree with Carla, those methods are commonly used for passing DTMF tones.
LA
Lakeesha
2 years ago
Definitely B, C, and E. I mean, who uses the UPDATE method for DTMF? That's just weird.
JU
Junita
2 years ago
E) Out-of-band method by encoding DTMF tone in SIP message (INFO method)
JA
Jacob
2 years ago
B) In-band method by encoding DTMF tone as in specific RTP packets (RFC 2833)
MI
Michal
2 years ago
A) In-band method by encoding DTMF tone as regular RTP packets
LO
Louann
2 years ago
B, C, and E. The in-band methods are good, but the out-of-band ones give you more control over the DTMF tones.
WE
Weldon
2 years ago
It's important to choose the right SIP method for passing DTMF tones based on your specific needs.
AL
Alecia
2 years ago
In-band methods like A can sometimes be less reliable for passing DTMF tones.
DA
Danilo
2 years ago
Out-of-band methods like C and E do provide more control over the DTMF tones.
NA
Nana
2 years ago
I agree, B, C, and E are the correct options for passing DTMF tones.
CA
Carla
2 years ago
I think the correct answers are B, C, and E.