Cisco Exam 300-815 Topic 1 Question 82 Discussion

Actual exam question for Cisco's 300-815 exam

Question #: 82
Topic #: 1

Refer to the exhibit.

The Cisco Unified Border Element receives an INVITE matching inbound dial peer 5002. The outbound dial peer supports only iLBC. and a Local Transcoding Interface is allocated. Based on the configuration and SDP from the INVITE message, which codec is chosen by Cisco Unified Border Element for the inbound call leg?

AG.711 A-law

BG.711 U-law

CG.729r8

DG.729br8

Show Suggested Answer

Suggested Answer: C

by Lashandra at Mar 05, 2024, 04:25 PM

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Allene

1 months ago

I bet the Unified Border Element is just going to choose the most cost-effective codec it can transcode to iLBC. It's probably not going to care about audio quality when it can save a few pennies.

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Marti

15 days ago

User3: Maybe it will choose G.711 U-law for cost-effectiveness.

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Penney

16 days ago

User2: I disagree, I believe it will go for G.729r8.

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Stevie

20 days ago

User1: I think it will choose G.711 A-law.

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Bettye

1 months ago

Wait, what? Isn't iLBC a wideband codec? I thought the Unified Border Element would choose a wideband codec to take advantage of the higher quality. This question is tripping me up!

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Ricarda

1 months ago

I think the answer is C) G.729r8. The question doesn't mention anything about the INVITE message preferring a specific codec, so the Unified Border Element will likely choose the default codec that it can transcode to iLBC.

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Ula

1 months ago

I'm not so sure about that. The question also says a Local Transcoding Interface is allocated, so maybe the Unified Border Element will choose a different codec that it can transcode to iLBC.

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Lisbeth

11 days ago

User 3: That could be a possibility considering the transcoding requirement.

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Timothy

20 days ago

User 2: Maybe it will go with G.729r8 then.

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Natalie

22 days ago

User 1: I think it might choose a different codec for transcoding.

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Katy

2 months ago

Hmm, this is tricky. The question mentions that the outbound dial peer supports only iLBC, so I'm guessing the Unified Border Element will choose that codec for the inbound call leg.

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