Your company assigns an Office 365 E3 license to each user. All users are in France. You plan to deploy Direct Routing. Which additional license should you assign to the users?

Question

Options

• AMicrosoft 365 Auto Conferencing
• BMicrosoft 365 Phone System - Virtual User
• CMicrosoft 365 Domestic Calling Plan
• DMicrosoft 365 Domestic and International Calling Plan
• EMicrosoft 365 Phone System

• A
  5% (1)
• B
  5% (1)
• E
  90% (19)

Explanation

Microsoft 365 Phone System (E) is the required add-on because Direct Routing needs the Phone System license to enable PBX capabilities in Teams - it's what allows Teams to act as a full phone system and connect to an external Session Border Controller (SBC). Office 365 E3 does not include Phone System; it must be added separately.

Why the distractors are wrong:

• A (Auto Conferencing): Not a real Microsoft product name; Audio Conferencing covers dial-in meeting access, not PSTN calling via Direct Routing.
• B (Phone System – Virtual User): A free license for resource accounts (auto attendants, call queues), not for regular end users.
• C & D (Calling Plans): These are Microsoft's own managed PSTN service. Direct Routing means you're bringing your own carrier via an SBC - adding a Calling Plan is unnecessary and redundant.

Memory tip: Think of it as two separate questions - Can the user use Teams as a phone? (Phone System license) vs. Who carries the calls? (Calling Plan = Microsoft; Direct Routing = your own carrier). For Direct Routing, you only need to answer the first question, so Phone System alone is correct.

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