The ms 721 syllabus covers four domains: planning and designing collaboration communications systems, configuring and managing Teams meetings and webinars, implementing and configuring Teams Phone, and configuring and managing Teams Rooms and devices. Implementing and configuring Teams Phone carries the largest share of the exam, followed by the two 24 percent domains, with meetings and webinars the smallest.
Microsoft groups everything Exam MS-721: Collaboration Communications Systems Engineer can ask about into four domains, each with its own published weight and a list of objective statements. Reading the ms 721 syllabus domain by domain, and knowing how much each one is worth, is the fastest way to decide where to spend study time before you look at cost & booking.
Implement and configure Teams Phone (34%)
This is the largest domain in the ms-721 exam objectives. Microsoft's study guide lists objective statements for this domain under two groups: policies, and auto attendants and call queues.
- Create and configure dial plans
- Create and configure calling policies
- Create and configure call park policies
- Create and configure caller ID policies
- Create and configure IP Phone policies
- Create and configure mobility policies
- Create and configure voicemail policies
- Create and configure call hold policies
- Create and configure outbound call restrictions
- Create and configure inbound call blocking
- Create and configure routing of unassigned numbers
- Create and configure compliance recording policies
- Create and configure Shared Calling policies
- Create and configure resource accounts
In practice, this domain expects you to know which policy governs which calling behavior, how a dial plan normalizes a dialed number, and how a resource account underpins an auto attendant or call queue. Because it is worth more than a third of the exam, this is where the ms 721 exam topics reward the deepest, most hands-on preparation.
Plan and design collaboration communications systems (24%)
This domain covers two clusters of objectives: planning Teams meetings, and planning Teams Phone and PSTN connectivity.
- Plan for Teams meetings, webinars, and town halls
- Plan and design Teams meeting policies and settings
- Plan for PSTN audio conferencing
- Recommend when to use Teams Premium, including Microsoft 365 Copilot
- Recommend meeting types based on business requirements
- Recommend methods for assigning policies
- Plan and design Teams policy packages
- Identify licensing requirements to enable Teams Phone for users, shared devices, and resource accounts
- Identify PSTN connectivity requirements
- Recommend when to use Teams Phone Mobile
- Plan for Operator Connect
- Plan and design SMS in Teams with Microsoft Calling Plan numbers
- Recommend an appropriate billing method for communications consumption
- Plan for Shared Calling
This domain is design-level rather than hands-on: you are expected to recommend an approach given a business requirement, not necessarily configure it yet. That distinction matters for how you study it.
Configure and manage Teams Rooms and devices (24%)
The ms-721 syllabus lists these objective statements under managing and maintaining Teams Rooms and devices:
- Configure device settings
- Configure local network settings
- Configure device updates
- Recommend Microsoft Entra Conditional Access MFA exceptions for resource accounts
- Configure meeting room settings by using the Teams admin center or local Teams application settings
- Manage Teams Rooms from the Teams Rooms Pro Management portal
- Specify Intune configuration requirements for Teams devices
- Deploy common area phones, user phones, and conference phones
- Create and manage Teams device tags
- Configure SIP Gateway and provision SIP devices
- Monitor Teams device health
- Troubleshoot authentication issues
- Troubleshoot update issues
- Troubleshoot remote provisioning issues
Half of this domain is troubleshooting, which means the ms 721 exam topics here often present a symptom first and ask you to identify the cause before recommending a fix, rather than asking for a definition.
Configure and manage Teams meetings, webinars, and town halls (18%)
The smallest domain by weight still deserves attention because its objectives are specific and quick to master:
- Create and manage meeting policies
- Configure meeting settings
- Configure avatars for Teams meetings
- Configure and manage meeting features, including apps, polls and forms, Q&A, and breakout rooms
- Create and manage Teams meeting templates and meeting template policies
- Configure controlled-content meeting policies
- Configure Cloud Video Interop policies
- Configure meeting recording and transcription to support Copilot and Teams Premium
- Configure virtual appointments and advanced virtual appointment policies
- Evaluate Teams Premium by using the Teams admin center
- Configure Audio Conferencing for Teams
- Configure a default Audio Conferencing bridge
- Configure an Audio Conferencing bridge number
- Configure a toll-free Audio Conferencing bridge number
How to use this ms-721 syllabus
Work through the domains in the order they are weighted, starting with Teams Phone since it alone makes up over a third of the exam. Pair this page with the exam format & scoring page to see how questions are structured, then move to the study plan to turn these domains into a week-by-week schedule. When you are ready to test yourself against objective statements phrased the way Microsoft phrases them, the sample questions page shows worked examples for each domain.
If a term above is unfamiliar, do not guess. The practice test page explains how our mock reports results by domain so you can see exactly which objective statements need another pass. Candidates unsure whether they meet the recommended background for this exam should also read prerequisites before committing to a booking.
Reading the objective statements correctly
Every bullet above is written by Microsoft as a short phrase, and that brevity can hide how broad a single objective really is. "Configure and manage meeting features, including apps, polls and forms, Q&A, and breakout rooms" is one line in the ms-721 exam objectives, but it spans several distinct settings screens at once. When you plan study time, treat each bullet as a topic to research in the Teams admin center rather than a single fact to memorize, and confirm you can explain the purpose and location of each setting in a sentence.
The same applies to the Teams Phone bullets. "Create and configure routing of unassigned numbers" is a compact phrase for a specific admin center workflow: deciding what happens when a call reaches a number that is not assigned to a user, queue, or auto attendant. Breaking the ms 721 exam topics down this way, one objective statement at a time, keeps your notes aligned with how the exam actually asks questions, since each question usually maps back to one specific objective rather than blending several together.
What this syllabus does not cover
The ms 721 syllabus is scoped to the Teams admin center, the Teams Rooms Pro Management portal, PowerShell, and the Call Quality Dashboard. It does not extend into broader Microsoft 365 identity administration or networking design outside of what a collaboration communications engineer configures directly. If a topic you are reading about starts to feel like general Microsoft Entra administration or wide-area network design rather than a Teams meetings, phone, or room capability, it likely belongs to one of the exams referenced on the career path page instead.
Exam facts on this page come from Microsoft’s own pages (official exam page). Prices, versions and policies change — confirm there before you book.