You have a Microsoft Teams Phone deployment that uses Direct Routing. You need to implement Local Media Optimization. In the Microsoft Teams admin center, you configure the external trusted IP…

Question

Options

• ADefine a voice route.
• BCreate a trunk translation rule.
• CAssign Session Border Controllers (SBCs) to sites.
• DModify the default emergency calling policy.

• A
  13% (3)
• B
  4% (1)
• C
  79% (19)
• D
  4% (1)

Explanation

Assigning SBCs to network sites (C) is the required next step because Local Media Optimization works by mapping SBCs to the network topology you've already defined - without that association, Teams has no way to know which SBC serves which internal location, making the optimization impossible.

Why the distractors are wrong:

• A (Voice route): Voice routes control call path selection for PSTN routing, not media path optimization - a completely separate configuration concern.
• B (Trunk translation rule): Translation rules manipulate phone number formats on trunks; they have no bearing on where media flows.
• D (Emergency calling policy): Emergency policies govern how E911 calls are handled and routed - unrelated to the LMO setup sequence.

Memory tip: Think of it as "build the map, then pin the SBCs to it." You've already drawn the map (regions → sites → subnets), so the logical next move is to place the SBCs on that map by assigning them to sites before the optimization can take effect.

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