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Cisco 300-815 Exam - Topic 4 Question 48 Discussion

A customer routes PSTN calls to ITSP through a SIP trunk on Cisco UCM that forwards and receives calls to and from ITSP. ITSP is set to send an E.164 number when the customer's extension is four digits. Which action should be taken to route the incoming calls to four-digit extensions?
B) Set the Significant Digits to 4 on the SIP trunk.
A) Configure a voice translation rule to map the E.164 number to four digits and assign it to the incoming dial-peer on Cisco Unified Border Element.
C) Configure a voice translation profile to map the E.164 number to four digits and assign it to the incoming dial-peer on Cisco Unified Border Element.
D) Set the Significant Digits to 8 on the SIP trunk.

Cisco 300-815 Exam - Topic 4 Question 48 Discussion

Actual exam question for Cisco's 300-815 exam
Question #: 48
Topic #: 4
[All 300-815 Questions]

A customer routes PSTN calls to ITSP through a SIP trunk on Cisco UCM that forwards and receives calls to and from ITSP. ITSP is set to send an E.164 number when the customer's extension is four digits. Which action should be taken to route the incoming calls to four-digit extensions?

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Suggested Answer: B

by Mitzie at May 08, 2022, 04:02 AM

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Laurel
10 months ago
Are we sure the E.164 number will always match the four digits?
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Torie
10 months ago
I agree, option A makes the most sense for mapping.
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Novella
11 months ago
Wait, why would you set significant digits to 8? That seems off.
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Owen
11 months ago
I think option C is the way to go!
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Gaynell
11 months ago
A voice translation rule is definitely needed here.
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Yuki
11 months ago
Hmm, I'm not totally sure about this one. I'll have to review the Expressway documentation again to see if transforms is the right approach for adding a domain to a numeric E.164 alias.
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Yun
11 months ago
Option A can't be right, old versions of the files are definitely still relevant if you need to go back and reference them. Daily backups in C could work, but source control is probably more efficient.
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Nan
11 months ago
I remember something about processes being important, but I can't quite recall if it was with application systems or products.
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Lavera
11 months ago
Wait, isn't editing the OOTB component directly risky? I'm tempted by option C with a custom component, but that feels like overkill.
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