Understand the certification
认证概述
Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate (MS-721) 验证您规划、部署、配置、维护和排障 Teams Phone、Teams 会议、Teams Rooms 和协作通信系统的能力。
考试领域
- 规划和设计协作通信系统 (Plan and design collaboration communications systems): 20–25%
- 配置和管理 Teams 会议/网络研讨会/Town hall (Configure and manage Teams meetings, webinars, and town halls): 15–20%
- 实施和配置 Teams Phone (Implement and configure Teams Phone): 30–35%
- 配置和管理 Teams Rooms 和设备 (Configure and manage Teams Rooms and devices): 20–25%
适合人群
- 协作通信系统工程师和统一通信工程师
- 负责 Teams Phone 和 PSTN 连接的 IT 专业人员
- Teams Rooms 部署和管理工程师
Exam at a glance
- Exam code
- MS-721
- Provider
- Azure
- Format
- single-choice / multiple-choice
- Language
- English
- Validity
- 3 years
Skills in focus
Learning outcomes
- Pass the MS-721 certification exam with confidence
- Master key concepts across all exam domains
- Identify and strengthen weak areas before the exam
Who this is for
- 协作通信系统工程师和统一通信工程师
- 负责 Teams Phone 和 PSTN 连接部署的 IT 专业人员
- Teams Rooms 设备部署和管理工程师
- 从传统 PBX 迁移到 Teams 的通信专家
Before you start
- 具备 Microsoft Teams 管理经验
- 了解 SIP/VoIP 网络和 SBC（Session Border Controller）基础
- 熟悉 PSTN 网络基础和 DNS 配置
- 有 Microsoft 365 管理中心和 Teams Admin Center 操作经验
Your learning path
7 chapters
Plan your preparation
- Learning hours
- 10h
- With relevant experience
- 4-6 weeks
- Starting from scratch
- 8-10 weeks
- Daily study
- 1-2h
Included in your preparation
- 142 practice questions with detailed explanations
- Mock exams simulating real test conditions
- AI-powered tutoring for personalized study
- Progress tracking and weak area identification
Preparation tips
- 48 题 90 分钟，平均每题 2 分钟，合理分配时间
- 及格分 70/100，不确定的题先标记跳过，回头再做
- 排除法非常有用 — 先排掉明显错误的选项，剩下的再分析
Common mistakes
- 没有读完所有选项就选答案 — 题目经常有"最佳"答案和"正确但不最佳"的干扰项
- 备考只刷题不理解原理 — 考试场景题需要理解底层概念
- 忽略时间管理 — 在难题上卡太久，导致后面简单题没时间做
Before you register
What certification is the MS-721 exam for?
MS-721 is the exam for Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate. It validates your ability to plan, configure, manage, and troubleshoot Microsoft Teams voice solutions, including PSTN connectivity, Teams Phone, auto attendants, and call queues. The exam targets IT professionals responsible for enterprise unified communications infrastructure.
What main domains does the MS-721 exam cover?
Five exam domains: (1) Configure PSTN connectivity (~20%): Direct Routing, SBC configuration, Operator Connect; (2) Configure Teams Phone (~19%): calling policies, voice routing, number management; (3) Configure auto attendants and call queues (~19%): IVR design, call flows, resource accounts; (4) Troubleshooting (~19%): call quality, SBC connectivity, media flow issues; (5) Plan Teams voice solutions (~16%): architecture design, migration strategies, license planning.
What prior knowledge is needed for MS-721?
Microsoft Teams administration experience and basic SIP/VoIP networking knowledge are recommended. Understanding of SBC (Session Border Controller) operations, PSTN network fundamentals, and DNS configuration is important. Experience with Microsoft 365 Admin Center and Teams Admin Center is preferred. Experience with traditional PBX or Skype for Business migration is an additional advantage.
How much weight do Direct Routing and Calling Plans carry in the exam?
PSTN connectivity configuration accounts for approximately 20% of the exam, with both Direct Routing (connecting PSTN via SBC) and Calling Plans (Microsoft-provided calling solutions) as important topics. Understanding the applicable scenarios, configuration steps, and cost differences for both is essential. Direct Routing SBC configuration and troubleshooting are typically the most challenging areas and deserve focused study.
Can these 142 practice questions help me pass the exam?
The 142 practice questions cover all five MS-721 exam domains with detailed explanations. They are valuable for targeted practice and knowledge validation. We recommend supplementing with Microsoft Learn official learning paths and hands-on work in Teams Admin Center. The question bank is continuously being updated with more questions coming.
Learner experiences
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