MS-720 Question #69: Real Exam Question with Answer & Explanation

Question

You have a Microsoft Teams Phone deployment that is used in the United States. You need to ensure that emergency calls placed to 9911. What should you configure?

Options

• Aa dial plan normalization rule
• Ban emergency calling policy
• Can emergency call routing policy
• Dan outbound PSTN number translation rule

Explanation

Option C is correct because an emergency call routing policy in Microsoft Teams Direct Routing is specifically designed to define emergency dial strings (like 911 or 9911) and map them to PSTN usage records that route calls to the appropriate emergency services - it is the only policy type that directly controls where an emergency call goes.

Why the distractors are wrong:

• A (Dial plan normalization rule): Normalization rules translate dial strings into E.164 format for general number routing, but they don't configure emergency-specific routing behavior or mark a number as an emergency call.
• B (Emergency calling policy): This policy handles notification features - who gets alerted when an emergency call is placed and dynamic location settings - not the actual call routing path.
• D (Outbound PSTN number translation rule): Translation rules reformat numbers sent to a Session Border Controller (SBC), which is a post-routing concern, not a mechanism for defining emergency call handling.

Memory tip: Split the two "emergency" policies by their suffix - Calling policy = who gets called/notified (people and location), Routing policy = how the call travels (dial strings + PSTN path). When the question is about ensuring a number reaches emergency services, you need routing.

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