Câu 72: MS-721: Collaboration Communications Systems Engineer

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.

1. A. calling policies
2. B. PSTN usages — đáp án hiện tại
3. C. tenant dial plans
4. D. voice routing policies — đáp án hiện tại
5. E. highly available Session Border Controllers (SBCs) — đáp án hiện tại