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Which of the following methods does SIP Server use to create a new SIP dialog? (Choose 2 answers)
Suggested Answer: A, C
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https://tools.ietf.org/html/rfc5057
32 comments · newest first
LO
Loreen
11 months ago
A and B are the classic choices, no doubt!
EL
Elise
11 months ago
Wait, can REGISTER really create a dialog? That seems off.
FR
Franklyn
11 months ago
A is correct, but I’m not so sure about B.
EM
Emmett
12 months ago
I thought C could also create a dialog?
AL
Almeta
12 months ago
Definitely A and B! Those are the main ones.
LU
Luz
1 year ago
I remember practicing a question where REGISTER was mentioned, but I don't think it creates a dialog either.
CH
Chandra
1 year ago
I feel like REFER could be a trick option here, but I don't recall it being used to start a dialog.
DA
Daron
1 year ago
I’m not so sure about the re-INVITE option; I remember it’s used for modifying an existing session, not creating a new one.
GW
Gwenn
1 year ago
I think the INVITE method is definitely one of the answers since it’s used to initiate a dialog.
TE
Tegan
1 year ago
Okay, let's see. INVITE and re-INVITE make sense, since they're the main ways to establish a new dialog. REFER and REGISTER are more for other SIP functions, so I'll go with A and B.
LA
Lashawna
1 year ago
Hmm, I'm not totally sure about this one. I know INVITE is used to initiate a new session, but I'm not certain about the other method. I'll have to think it through carefully.
VI
Viola
1 year ago
This one seems straightforward - INVITE and re-INVITE are the two methods used to create a new SIP dialog, so I'll select those.
DI
Dierdre
1 year ago
I'm a bit confused on the differences between these SIP methods. I'll have to review my notes to make sure I understand which ones are specifically used to create a new dialog. Better play it safe and not guess.
PE
Peggy
1 year ago
I'm leaning towards B, but it feels like the answer would depend on how the P-frames process the video data without any I-frames.
LA
Laquita
2 years ago
This is a classic SIP question. INVITE and re-INVITE are the obvious choices. I bet the next question is going to be about the differences between them.
VI
Virgina
2 years ago
B) re-INVITE
EL
Elouise
2 years ago
A) INVITE
AI
Aileen
2 years ago
Hmm, I'd say INVITE and re-INVITE are the correct answers. REFER is used for transferring calls, not creating new dialogs. And REGISTER, well, that's just for registration purposes.
AN
Annabelle
2 years ago
REFER is for call transfers and REGISTER is for registration, not for creating dialogs.
RO
Royce
2 years ago
I agree, INVITE and re-INVITE are used to create new SIP dialogs.
RA
Rashad
2 years ago
I'm not sure about C) REFER, but I think B) re-INVITE is also used for creating a new SIP dialog.
KE
Kerrie
2 years ago
I agree with Raymon, but I also think D) REGISTER is another method used.
WI
Willow
2 years ago
REGISTER? Really? That's for registering with the SIP server, not creating a new dialog. I think this question is trying to trick us!
WI
William
2 years ago
B) re-INVITE
PA
Paul
2 years ago
A) INVITE
AN
Annmarie
2 years ago
I'm pretty sure REFER is also used to create new dialogs, but I could be wrong. Gotta double-check my SIP protocol notes.
RA
Raymon
2 years ago
I think A) INVITE is used to create a new SIP dialog.
KE
Kenny
2 years ago
INVITE and re-INVITE, duh! That's like the bread and butter of SIP dialogs.
CL
Clorinda
2 years ago
REGISTER and REFER are important too, but INVITE and re-INVITE are the main ones.
LA
Lavera
2 years ago
I always make sure to use INVITE and re-INVITE when setting up SIP dialogs.
VE
Veronique
2 years ago
Yes, those two are essential for establishing and modifying the dialog.
SC
Scarlet
2 years ago
INVITE and re-INVITE are definitely key methods for creating SIP dialogs.