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Exam MS-721 topic 1 question 61 discussion

Actual exam question from Microsoft's MS-721
Question #: 61
Topic #: 1
[All MS-721 Questions]

You have a Microsoft Teams deployment and an existing telephony solution that provides PSTN capability to on-premises third-party PBX systems in two separate locations.

You need to implement a redundant PSTN solution for Microsoft Teams Phone. The solution must use the existing telephony carrier services. The solution must ensure that outbound calls can be made if a component fails.

Which three components should you implement? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

  • A. calling policies
  • B. PSTN usages
  • C. tenant dial plans
  • D. voice routing policies
  • E. highly available Session Border Controllers (SBCs)
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Suggested Answer: BDE 🗳️
by banderas at Dec. 12, 2023, 11:05 a.m.

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734acc2
7 months, 4 weeks ago
- **PSTN Usages (B)**: - **PSTN usages** are essential for defining which PSTN routes can be used by different users or groups. They are a key component of voice routing policies and help in determining the routing of outbound calls based on the user's location or other criteria. - **Voice Routing Policies (D)**: - **Voice routing policies** determine how calls are routed from Microsoft Teams to the PSTN. These policies include PSTN usages and ensure that calls are directed to the appropriate SBCs based on the defined rules. For redundancy, voice routing policies should include multiple SBCs to ensure that if one fails, calls can still be routed through another. - **Highly Available Session Border Controllers (SBCs) (E)**: - **Highly available SBCs** are critical for redundancy. By deploying redundant SBCs, you ensure that if one SBC fails, the other can take over, allowing outbound calls to continue without interruption.
upvoted 2 times
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banderas
1 year, 4 months ago
Answer is correct
upvoted 1 times
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