Updated for 2026 Exam Objectives

MS-721 Practice Test

Teams Phone and Rooms questions that match real MS-721 complexity.

MS-721 tests real-world voice engineering scenarios — Direct Routing SBC configuration, LBR, call queue routing, emergency calling. Our 500 questions cover every domain at associate difficulty so exam day holds no surprises.

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Is this for you?

Your MS-721 exam is in the next 2-4 weeks
You've studied the concepts but aren't sure you'll pass
You want questions harder than the real exam
You want to understand why answers are correct, not just memorize

This is NOT for you if:

You're looking for braindumps or exam leaks
You haven't started studying the concepts yet
Most successful candidates start practice 2-3 weeks before their exam
Updated for April 2026 exam blueprint

MS-721 Exam Details

What to expect on exam day

Questions

40-60 questions

Duration

120 minutes

Passing Score

700/1000

Exam Cost

$165 USD

Exam Domains Covered

Master all topics tested on the MS-721 exam

1

Plan and design collaboration communications systems (20-25%)

2

Configure and manage Teams meetings, webinars, and town halls (15-20%)

3

Configure and manage Teams Phone (30-35%)

4

Configure and manage Teams Rooms and devices (20-25%)

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5 Free MS-721 Questions

See how ready you are for the MS-721 exam. Each question includes a detailed explanation so you learn as you go.

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Why Practice with MSCertQuiz?

Microsoft Learn teaches concepts. We prepare you for the actual exam.

1

Scenario-based Teams Phone questions covering Direct Routing, Operator Connect, and Calling Plans

2

Explanations teach why voice routing, LBR, and emergency calling work — not just what the answer is

3

Full coverage of Teams Rooms: Windows, Android, IP phones, SIP Gateway, and Pro Management

4

Updated for the latest 2026 exam objectives — no outdated material

Not sure if you're ready for the MS-721 exam?

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What Our Users Say

“The Direct Routing and LBR questions were exactly what I needed. The real MS-721 had very similar scenarios around voice routing policies and SBC configuration. Passed with 760.”

MR

Michael R.

Teams Voice Engineer

“I manage Teams Phone at a 5,000-person company and still found gaps in my knowledge. The call queue and auto attendant questions taught me configurations I had never needed but the exam absolutely tests.”

SN

Sarah N.

MS-721 Certified

“Teams Rooms domain caught me off guard initially. The questions on AOSP management and Pro Management portal were things I hadn't studied. MSCertQuiz covered every corner of the exam.”

JC

James C.

Passed MS-721 first try

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Official Microsoft Resources

Our practice questions are aligned with official Microsoft exam objectives. We recommend studying with Microsoft Learn first, then using MSCertQuiz to test your readiness.

View Official MS-721 Exam Details

MS-721 Frequently Asked Questions

Everything you need to know about the MS-721 Collaboration Communications certification

What is the MS-721 certification?
MS-721 (Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate) validates expertise in Microsoft Teams voice and collaboration infrastructure. It covers Teams Phone (Direct Routing, Operator Connect, Calling Plans), Teams meetings and events, and Teams Rooms device management. It is the primary certification for Teams voice engineers.
How hard is the MS-721 exam?
MS-721 is considered one of the more challenging Microsoft 365 associate exams because it requires deep technical knowledge of SIP, voice routing, SBC configuration, and Teams Phone architecture. Candidates with real-world Teams Phone experience typically need 2-3 months of focused study. The exam includes scenario-based questions that test your ability to troubleshoot voice routing and design solutions.
What are the prerequisites for MS-721?
There are no formal prerequisites, but Microsoft recommends hands-on experience with Teams Phone, including configuring Direct Routing or Operator Connect. Familiarity with SIP protocol concepts, Exchange Online (for resource accounts), and PowerShell is essential. Many candidates take AZ-900 or MS-900 first to build foundational knowledge.
What PSTN connectivity options are covered in MS-721?
MS-721 covers all four Teams Phone PSTN connectivity options: Microsoft Calling Plans (Microsoft provides numbers and trunk), Direct Routing (your SBC paired with Teams via SIP), Operator Connect (certified carrier manages connectivity via Teams admin center), and Teams Phone Mobile (Operator Connect Mobile for SIM-based calling). Each option has specific implementation and management scenarios on the exam.
How many questions are on the MS-721 exam?
The MS-721 exam contains 40-60 questions and allows 120 minutes. Questions include multiple choice, scenario-based, drag-and-drop, and case study formats. A passing score is 700 out of 1000. The exam is priced at $165 USD.
What is Direct Routing and why is it important for MS-721?
Direct Routing is a Teams Phone connectivity method where you connect your own SBC (Session Border Controller) to Microsoft Teams to use your existing telephony carrier. It is the most complex PSTN option and accounts for a significant portion of MS-721 questions. Topics include SBC certificate requirements, voice route configuration, PSTN usage records, media bypass, Local Media Optimization, and Location-Based Routing.
Does MS-721 cover Teams Rooms?
Yes, Teams Rooms is a dedicated domain in MS-721 (20-25% of the exam). This includes Teams Rooms on Windows vs Android, resource account configuration, Teams Rooms Pro vs Basic licenses, Teams Panels, IP phone management, device configuration profiles, the Pro Management portal, and coordinated meetings. Understanding the Intune management approach for different device types is also tested.
Is MS-721 worth it in 2026?
Absolutely. As organizations continue migrating voice systems from legacy PBX to Teams Phone, demand for certified Teams voice engineers is growing rapidly. MS-721 holders can command premium salaries in roles like Collaboration Engineer, Teams Voice Architect, and UC Administrator. The certification demonstrates both technical depth (Direct Routing) and breadth (meetings, rooms, devices) that employers value.

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Candidates studying MS-721 often prepare for these certifications next.

MS-102

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