Huawei
H35-211 · Question #207
In the SIP basic call process, when the caller receives which of the following signaling can hear the ring back tone?
The correct answer is C. 180 ring. See the full explanation below for the reasoning.
Question
In the SIP basic call process, when the caller receives which of the following signaling can hear the ring back tone?
Options
- AInvite
- B100 trying
- C180 ring
- DACK
How the community answered
(37 responses)- A5% (2)
- B11% (4)
- C81% (30)
- D3% (1)
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