Cisco Exam 300-815 Topic 4 Question 109 Discussion

Actual exam question for Cisco's 300-815 exam

Question #: 109
Topic #: 4

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?

Avoice-class sip rel1xx disable

Bvoice-class sip early-media update block

Cvoice-class midcall-signaling block

Dvoice-class sip conn-reuse

Show Suggested Answer

Suggested Answer: A

by Matt at Apr 05, 2025, 03:03 AM

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Lera

2 days ago

Hmm, this seems like a tricky one. I'm going to go with option B, the voice-class sip early-media update block command. It sounds like it could be the culprit here.

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Vonda

14 days ago

But if early media is failing to establish, blocking early media updates with option B could be the issue.

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Octavio

14 days ago

I think the issue is with the voice-class sip rel1xx disable command. The Cisco UCM is set to require a PRACK, but the CUBE is not sending it due to this command.

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Brittney

16 days ago

I disagree, I believe the correct answer is A) voice-class sip rel1xx disable.

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Vonda

19 days ago

I think the answer is B) voice-class sip early-media update block.

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