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Cisco 300-815 Exam - Topic 9 Question 21 Discussion

Refer to the exhibit.An engineer is troubleshooting an issue where inbound calls to Cisco UCM with early media fail to establish. While investigating the issue, the engineer finds that Cisco UCM is set to require a PRACK. but the Cisco Unified Border Element is not sending it. Which command is causing this issue?
A) voice-class sip rel1xx disable
B) voice-class sip early-media update block
C) voice-class midcall-signaling block
D) voice-class sip conn-reuse

Cisco 300-815 Exam - Topic 9 Question 21 Discussion

Actual exam question for Cisco's 300-815 exam
Question #: 21
Topic #: 9
[All 300-815 Questions]

Refer to the exhibit.

An engineer is troubleshooting an issue where inbound calls to Cisco UCM with early media fail to establish. While investigating the issue, the engineer finds that Cisco UCM is set to require a PRACK. but the Cisco Unified Border Element is not sending it. Which command is causing this issue?

Show Suggested Answer Hide Answer
Suggested Answer: A

by Daniel at May 03, 2022, 08:53 AM

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Eliseo
10 months ago
Pretty sure it's option C, midcall signaling is key here.
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Lili
10 months ago
Surprised to see PRACK causing issues, didn't expect that!
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Marjory
11 months ago
No way, I thought it was option B that was the culprit!
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Kimi
11 months ago
I think it's option A, that command blocks the PRACK.
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Laura
11 months ago
It's definitely the PRACK issue causing the call failure.
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Sherrell
11 months ago
I'm pretty sure the answer is 5 levels, but I'll double-check the documentation just to be sure.
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Shaun
11 months ago
A 3rd party SIEM that can ingest NGFW logs and perform event correlation might be the most flexible solution. That way, the customer can leverage their existing security investments.
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