MS-700 Manage Meetings and Calling Practice Question
You are managing Microsoft Teams Direct Routing for your enterprise voice deployment. You need to ensure high availability and survivability for your Session Border Controllers (SBCs). Which TWO configuration tasks must you perform in the Teams admin center or via PowerShell? (Choose two.)
⚠ Common exam trap
MS-700 often tests the misconception that media bypass or emergency calling settings provide SBC redundancy, but the key is multiple SBCs in a route and proper voice routing policies.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure multiple Session Border Controllers in a voice route.
Option A is correct because a voice route can list multiple SBCs (gateways) in its GatewayList, and Direct Routing will fail over to the next SBC in the list if the primary SBC is unreachable, which is the core mechanism for SBC high availability. Option C is correct because voice routing policies determine which routes (and therefore which SBCs) a user can use; the resilient multi-SBC routes must be referenced by a voice routing policy and assigned to users, otherwise the redundancy is never applied to calls. Options B, D, and E are not required for SBC high availability: a single emergency PSTN usage does not provide SBC redundancy, setting media bypass to false is a media-path design choice rather than a survivability requirement, and dynamic emergency calling with location-based routing addresses emergency location routing, not SBC failover.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure multiple Session Border Controllers in a voice route.
Why this is correct
Associating multiple SBCs within a single voice route enables the platform to automatically cycle through alternate gateways if the primary session border controller fails to respond. This redundancy prevents call drops and ensures uninterrupted enterprise voice connectivity during unexpected telecommunication infrastructure outages.
- ✗
Assign a single emergency PSTN usage to all global users.
Why it's wrong here
Emergency routing relies on specific emergency PSTN usages mapped to local emergency gateways rather than a single global assignment. Hardcoding a uniform global rule fails to route local emergency calls through the nearest appropriate regional gateway during life-safety incidents.
- ✓
Create voice routing policies that reference the resilient voice routes.
Why this is correct
Voice routing policies package the configured voice routes and apply them to specific users or tenant subsets. Linking these policies ensures that when users place outbound calls, the system evaluates the ordered list of routes containing redundant SBC endpoints for reliable failover execution.
- ✗
Set the media bypass parameter to false for all inter-site trunks.
Why it's wrong here
Disabling media bypass globally degrades call performance by forcing media traffic through cloud media processors instead of direct paths. High availability depends on gateway redundancy and routing design, not on disabling optimizations that reduce latency and conserve network bandwidth resources.
- ✗
Enable dynamic emergency calling via location-based routing exclusively.
Why it's wrong here
Location-based routing restricts PSTN usage based on network topology to prevent toll bypass rather than providing general high availability. Relying solely on location-based routing does not fulfill the requirement of configuring fallback paths and redundant SBC gateways for standard survivability.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Microsoft exam blueprint
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