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3301 · Question #15
3301 Question #15: Real Exam Question with Answer & Explanation
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Question
When initiating a simple SIP call, the SIP architecture uses an INVIII method message. Which two fields would you examine to determine that an INVITE message was initiated when tracing a SIP call?
Options
- ACall-ID:, Contact:
- BRequest:, Cseq:
- CVia:, To:
- DContact:, Cseq:
- ERequest:, To:
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