MS-721: Microsoft Collaboration Communications Systems Engineer Practice Test

140 questions available

Microsoft Collaboration Communications Systems Engineer Associate exam covering Teams Phone, Direct Routing, and Teams Rooms deployment. Administered by Microsoft as a linear format exam. Key domains include Implement and configure calling solutions, Implement and configure meeting solutions, Manage Teams Rooms and Plan and design calling solutions.

Certification exam

40 Exam questions

1 hour 40 minutes Time Limit

Career Opportunities & Salary

Entry – Azure Administrator $70,000 - $106,000

Mid-Career – Azure Cloud Engineer $100,000 - $152,000

Senior – Azure Solutions Architect $130,000 - $199,000

Azure AdministratorAzure Cloud EngineerAzure Solutions Architectgrowing market

Why This Certification Opens Doors

In today's hybrid work environment, a reliable and feature-rich voice communication system is not a luxury but a business-critical utility. This exam matters because it certifies the ability to move an organization beyond basic chat and video meetings to a fully integrated, cloud-based telephony system. The practical value lies in reducing reliance on legacy PBX systems, lowering costs, improving user mobility and productivity, and creating a resilient communications backbone that directly supports core business operations and customer interactions.

Exam Blueprint

Each domain is weighted to match the real certification exam, so a full practice simulation predicts your result.

01Implement and configure calling solutions

30%

02Implement and configure meeting solutions

30%

03Manage Teams Rooms

20%

04Plan and design calling solutions

20%

Exam Details MS-721 | $165 USD | 1 hour 40 minutes

Exam Code MS-721

Vendor Microsoft

Exam Cost $165 USD

Passing Score 700/1000

Time Limit 1 hour 40 minutes

Exam questions 40

Question Types Multiple Choice, Multiple Response, Drag and Drop, Case Study, Build List, Hot Area, Repeated Answer Choices

Retake Policy No waiting period for first retake if score >= 500 on failed attempt. If score < 500: 14-day waiting period before retake. Maximum 5 attempts per exam per year (365 days). Free retake voucher sometimes included in official instructor-led training.

Exam Format Linear

Online Proctoring Available

Available In

EnglishSimplified ChineseTraditional ChineseFrenchGermanJapaneseKoreanPortugueseRussianSpanishArabicIndonesian

Schedule Real Exam

Study Resources

Microsoft Learn (free self-paced training)

MicrosoftFree

Free official learning paths mapped to each exam

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Microsoft Official Practice Assessment

MicrosoftFree

Free official practice questions on Microsoft Learn

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Frequently Asked Questions

Do I need direct, hands-on experience with Microsoft Teams Phone to pass?

Yes, unequivocally. While foundational knowledge is important, the exam is heavily focused on practical configuration, troubleshooting, and design scenarios. Success is highly unlikely without real-world experience deploying Calling Plans, Operator Connect, or Direct Routing, and using the Teams admin center and PowerShell for voice management.

How important is understanding networking concepts like QoS and SIP?

Critical. A substantial portion of the exam and the real-world role involves ensuring call quality and reliable connectivity. You must understand core networking principles, including how to configure Quality of Service (QoS) for real-time media, and have a working knowledge of Session Initiation Protocol (SIP) fundamentals for Direct Routing scenarios.

Should I focus more on Calling Plans or Direct Routing?

You must be proficient in both, as well as Operator Connect. The exam expects you to understand all PSTN connectivity options, their use cases, and how to configure them. Direct Routing often receives detailed attention due to its complexity, but you will be tested on the full spectrum of voice connectivity methods.

Is the associated certification a prerequisite for other roles?

Yes. Passing MS-721 is a required component for earning the Microsoft 365 Certified: Teams Voice Engineer Expert certification. This expert-level credential is a recognized benchmark for senior roles focused on enterprise voice and collaboration systems.

What is the best resource for practical, hands-on learning?

The most effective preparation combines official Microsoft Learn modules with hands-on practice in a lab environment. Use a Microsoft 365 developer tenant or a trial tenant to build and test configurations from the ground up-configure auto attendants, call queues, voice routing policies, and simulate troubleshooting scenarios.

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