Exam 300-815 topic 1 question 22 discussion

Actual exam question from Cisco's 300-815

Question #: 22
Topic #: 1

Refer to the exhibit. Users report that outbound PSTN calls from phones registered to Cisco Unified Communications Manager are not completing. The local service provider in North America has a requirement to receive calls in 10-digit format. The Cisco Unified CM sends the calls to the Cisco Unified Border Element router in a globalized E.164 format. There is an outbound dial peer on Cisco Unified Border Element configured to send the calls to the provider. The dial peer has a voice translation profile applied in the correct direction but an incorrect voice translation rule applied, which is shown in the exhibit. Which rule modified DNIS in the format that the provider is expecting?

A. rule 1 /^/+$[^1].*$/ /011\1/
B. rule 1/^\+1$[2-9]..[2-9]"¦"¦$$/ /\1/
C. rule 1 /^$[2-9]..[2-9]"¦"¦$$/ /\1/
D. rule 1 /^\+1$[2-9]..[2-9]"¦"¦$$/ /\0/

Show Suggested Answer

Suggested Answer: B 🗳️

by FrankPic at Aug. 29, 2023, 2:09 p.m.

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john_doe_9999

Highly Voted 1 year, 5 months ago

The correct translation without the incorrect characters is: rule 1 /^\+1$[2-9]..[2-9]......$$/ /\1/

upvoted 5 times

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f1ab921

Most Recent 8 months ago

Selected Answer: B

The options are not showing correctly here, john_doe_9999 is 100% correct, and his translation is the right answer, which will be one of the options in the exam.

upvoted 2 times

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FrankPic

1 year, 9 months ago

In my opinion there is no valid answer. A is not correct since it contains invalid escape character (/+ instead of \+) B, C and D contain invalid wildcard " and | C is also missing the \+ in order to match incoming E164 called number from CUCM

upvoted 1 times

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