- Plan for Teams meetings, webinars, and town halls.
- Plan meeting policies, settings, and PSTN audio conferencing.
- Recommend when to use Teams Premium and Microsoft 365 Copilot.
- Recommend meeting types and policy assignment methods, including policy packages.
Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate (MS-721)
Microsoft Collaboration Communications Systems Engineer Associate Certification Training Course MS-721
Prepare for Exam MS-721: Collaboration Communications Systems Engineer, which leads to Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate. Accumentum maps the course to Microsoft published skills measured.
Course focus: Teams Phone and PSTN connectivity, meetings and webinars, town halls, Teams Premium, Teams Rooms, certified devices, network readiness, and Call Quality Dashboard.
Course Overview
Plan, configure, and manage Teams Phone, meetings, Rooms, and certified devices.
Accumentum Microsoft Collaboration Communications Systems Engineer Associate Certification Training Course (MS-721) prepares collaboration communications systems engineers for Exam MS-721, which leads to Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate.
Microsoft audience plans, deploys, configures, maintains, and troubleshoots collaboration communication systems that include Microsoft Teams Phone, Teams meetings, webinars, town halls, Teams Premium, Microsoft 365 Copilot, Microsoft Teams Rooms, flexible workplaces, and other certified devices. Microsoft expects fundamental understanding of networking, telecommunications, audio and visual meeting room technologies, and identity and access management, plus proficiency with Teams admin center, Teams Rooms Pro Management portal, PowerShell, and Microsoft Call Quality Dashboard.
This page uses Microsoft published skills measured. Accumentum does not invent exam prices or unofficial question counts.
Course Objectives
What you will be able to plan, configure, and manage.
01
Plan collaboration systems
Plan Teams meetings, Teams Phone and PSTN connectivity, certified device solutions, and prepare the network for Teams.
02
Meetings, webinars, and town halls
Configure Teams meetings, Audio Conferencing, webinars, and town halls, including Teams Premium related features.
03
Teams Phone
Implement Teams Phone policies, auto attendants, call queues, emergency calling, number assignment, calling features, and Direct Routing.
04
Teams Rooms and devices
Manage Teams Rooms and devices on Windows and Android, optional room features, BYOD spaces, and bookable desks.
Who Should Attend
- Collaboration communications systems engineers who plan and run Teams Phone, meetings, Rooms, and certified devices.
- Engineers who work with Teams administrators, identity and access admins, Microsoft 365 admins, facilities, network, security, device makers, and telephony providers.
- Professionals with fundamentals in networking, telecommunications, meeting room AV, and identity and access management.
- Learners who use Teams admin center, Teams Rooms Pro Management portal, PowerShell, and Call Quality Dashboard and are preparing for Exam MS-721.
Prerequisites
- Fundamental understanding of networking, telecommunications, audio and visual meeting room technologies, and identity and access management.
- Proficiency managing collaboration solutions with Teams admin center, Teams Rooms Pro Management portal, PowerShell, and Call Quality Dashboard.
- Experience working with Teams administrators and related Microsoft 365 workload owners is helpful.
- Confirm any Microsoft stated prerequisites on Microsoft Learn.
Pathway Map
Twelve modules mapped to Microsoft MS-721 published skills.
Skills measured: plan and design collaboration communications systems 20 to 25%. Configure and manage Teams meetings, webinars, and town halls 15 to 20%. Configure and manage Teams Phone 30 to 35%. Configure and manage Teams Rooms and devices 20 to 25%.
1
Plan and design Teams meetings
2
Plan Teams Phone and PSTN connectivity
3
Plan Teams-certified device solutions
4
Prepare the network for Teams
5
Configure and manage Teams meetings
6
Configure Audio Conferencing, webinars, and town halls
7
Create and configure Teams Phone policies
8
Auto attendants, call queues, and emergency calling
9
Assign licenses, numbers, and calling features
10
Configure and manage Direct Routing
11
Manage Teams Rooms and devices
12
Optional room features, BYOD spaces, and bookable desks
Course Content
Twelve modules mapped to Microsoft MS-721 published skills.
- Identify licensing and PSTN connectivity requirements for Teams Phone.
- Plan Operator Connect, Calling Plans, Shared Calling, SMS, and phone number scenarios.
- Design call flows for auto attendants and call queues, and plan dynamic emergency calling.
- Plan Direct Routing, SBC solutions, SBAs, compliance recording, and contact center use cases.
- Recommend room configurations including BYOD based on space and business needs.
- Choose Teams Rooms Basic or Pro and Windows or Android platforms.
- Recommend certified devices, components, and interoperability options such as CVI and guest join.
- Identify resource account, Intune, and AOSP enrollment requirements.
- Evaluate network readiness and use Network planner for Teams.
- Specify QoS requirements, Media Bit Rate, network topology, and roaming policy.
- Recommend when to use Enterprise CDN.
- Configure tenant data upload and reporting labels for Call Quality Dashboard and Call Analytics.
- Create and manage meeting policies and settings.
- Configure meeting features including apps, polls, Q and A, breakout rooms, and Teams Premium features.
- Create meeting templates and controlled-content meeting policies.
- Configure recording and transcription to support Microsoft 365 Copilot and Teams Premium.
- Configure Audio Conferencing bridges, numbers, and toll-free options.
- Configure webinar roles, access, policies, and attendee interaction.
- Configure town hall settings, Microsoft eCDN, and advanced town hall features.
- Configure town halls with Teams, Viva Engage, and Microsoft Stream.
- Create dial plans, calling policies, call park, caller ID, IP Phone, mobility, and voicemail policies.
- Configure call hold, outbound restrictions, inbound blocking, and unassigned number routing.
- Create compliance recording and Shared Calling policies.
- Create resource accounts, assign licenses and numbers, and build auto attendants and call queues.
- Configure routing methods, business hours, Music on Hold, callback, and the Queues app.
- Configure emergency calling locations, LIS, emergency policies, and validate emergency addresses.
- Assign Teams Phone Standard licenses, Calling Plans, and phone numbers in the admin center or with PowerShell.
- Assign policies and policy packages, including group policy assignment.
- Configure Cloud Voicemail, group call pickup, call forwarding, simultaneous ring, delegation, and private lines.
- Configure SBC connectivity, PSTN gateways, usage records, voice routes, and voice routing policies.
- Validate SBC connectivity and identify use cases for Location-Based Routing and Local Media Optimization.
- Configure trunk translation, on-network conferencing, SBA policies, and phone number inventory.
- Troubleshoot Direct Routing in the Teams admin center.
- Configure device settings, updates, and meeting room settings from admin center or Rooms Pro Management portal.
- Deploy common area, user, and conference phones, and configure SIP Gateway.
- Configure Teams Android devices and Teams Rooms on Windows, including XML and Intune requirements.
- Monitor device health and troubleshoot authentication, updates, provisioning, and proximity join.
- Configure HDMI ingest, content camera, Teams casting, proximity join, room remote, and Direct Guest Join.
- Configure hot desking and AI-enabled voice and video capabilities for shared space devices.
- Create room types, manage inventory, assign devices, and set up bookable desks.
- Manage and monitor shared space rooms that include bring-your-own devices.
Course Features
Designed for collaboration communications systems engineers.
Skills-measured map
Twelve modules aligned to Microsoft MS-721 published skill domains.
Teams Phone weighted highest
Configure and manage Teams Phone is the largest published domain at 30 to 35%.
Public exam facts
100 minutes on Microsoft credential page. Pearson VUE. Passing score 700 or greater. No invented prices.
Rooms and devices included
Cover Teams Rooms, Android and Windows devices, BYOD spaces, and bookable desks alongside Phone and meetings.
Certification Exam
Prepare for the official Microsoft MS-721 exam.
MS-721 Exam Readiness
Accumentum MS-721 training prepares engineers to plan, deploy, configure, and troubleshoot Teams collaboration communications systems.
The Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate exam is MS-721. Public facts from Microsoft: 100 minutes, delivered through Pearson VUE, a score of 700 or greater is required to pass, and associate certifications expire annually and can be renewed on Microsoft Learn. Accumentum does not publish unofficial question counts or invented exam prices.
Skills measured: plan and design collaboration communications systems (20 to 25%), configure and manage Teams meetings, webinars, and town halls (15 to 20%), configure and manage Teams Phone (30 to 35%), and configure and manage Teams Rooms and devices (20 to 25%).
Confirm current scheduling, languages, and interactive-item details on Microsoft Learn and Pearson VUE.
Skills Measured
What Microsoft says MS-721 measures.
Microsoft lists the skills measured for Exam MS-721 as of October 29, 2026. Below are all 4 domains, 19 skill groups and 173 tasks in Microsoft's own wording. Our course maps a lesson or lab to each one.
Plan and design Teams meetings
Part of Plan and design collaboration communications systems (20 to 25%)
- 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 and Microsoft 365 Copilot
- Recommend meeting types based on business requirements, including appointments with Microsoft Teams, webinars, town halls, and meetings
- Recommend methods for assigning policies
- Plan and design Teams policy packages
Plan and design Teams Phone and PSTN connectivity
Part of Plan and design collaboration communications systems (20 to 25%)
- Identify licensing requirements to enable Teams Phone for users, shared devices, and Teams 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, including domestic, international, and pay-as-you-go (PAYG)
- Plan for Shared Calling
- Plan usage scenarios for service and user phone numbers
- Plan for porting and/or acquiring phone numbers
- Design call flows for auto attendants and call queues
- Design a solution for dynamic emergency calling
- Recommend devices for Teams Phone
- Plan for and recommend analog devices, Session Initiation Protocol (SIP) handsets, and SIP devices
- Recommend when to use Survivable Branch Appliances (SBAs)
- Plan and design Direct Routing
- Recommend a Session Border Controller (SBC) solution based on PSTN connectivity
- Identify an appropriate compliance recording solution
- Identify use cases for certified contact center solutions
- Identify use cases for the Queues app
Plan and design Teams-certified device solutions
Part of Plan and design collaboration communications systems (20 to 25%)
- Recommend a room configuration based on the meeting space, including Bring Your Own Device (BYOD)
- Recommend a room configuration based on customer and business requirements
- Choose between Teams Rooms Basic and Teams Rooms Pro
- Recommend a Teams Rooms device platform, including Windows and Android
- Recommend Teams-certified devices
- Recommend Teams Rooms certified components
- Recommend an interoperability solution for Microsoft Teams Rooms, including Cloud Video Interop (CVI), Direct Guest Join, and SIP Guest Join
- Identify the requirements for a Microsoft Teams Rooms resource account
- Identify the enrollment requirements for Microsoft Intune
- Identify the enrollment requirements for Android Open Source Project (AOSP) device management
- Plan for advanced features on shared devices
Prepare the network for Teams
Part of Plan and design collaboration communications systems (20 to 25%)
- Evaluate network readiness by using the Microsoft Teams Network Assessment Tool
- Recommend when to use Enterprise Content Delivery Network (eCDN)
- Specify the network configuration for certified devices
- Determine network requirements by using the Network planner for Teams
- Specify the optimal network architecture for Teams
- Specify Teams Quality of Service (QoS) requirements and policies
- Configure Teams for QoS
- Configure Media Bit Rate (MBR)
- Create and assign a network roaming policy
- Configure the network topology
- Configure tenant data upload for the Microsoft Call Quality Dashboard
- Configure reporting labels for Call Analytics
Configure and manage Teams meetings
Part of Configure and manage Teams meetings, webinars, and town halls (15 to 20%)
- Create and manage meeting policies
- Configure meeting settings
- Configure avatars for Teams meetings
- Configure and manage meeting features, including meeting apps, polls and forms, Q&A, breakout rooms, and Teams Premium features
- 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 Microsoft 365 Copilot and Microsoft Teams Premium
- Configure virtual appointments and advanced virtual appointment policies
- Evaluate Teams Premium by using the Teams admin center
Configure and manage Audio Conferencing
Part of Configure and manage Teams meetings, webinars, and town halls (15 to 20%)
- 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
- Assign a specific Audio Conferencing number to a user
- Configure toll-free Audio Conferencing
- Configure the Audio Conferencing numbers included in meeting invitations
Configure and manage Teams webinars
Part of Configure and manage Teams meetings, webinars, and town halls (15 to 20%)
- Configure webinar roles and presenter and attendee experience
- Manage access to scheduling Teams webinars
- Configure policies for Teams webinars
- Configure in-org vs public webinars
- Configure advanced webinar features
- Configure attendee interaction for webinars
Configure and manage Teams Town halls
Part of Configure and manage Teams meetings, webinars, and town halls (15 to 20%)
- Configure Town Hall settings
- Configure a Microsoft eCDN for Town halls
- Configure advanced Town hall features
- Configure Town halls with Teams, Viva Engage, and Microsoft Stream
Create and configure Teams Phone policies
Part of Implement and configure Teams Phone (30 to 35%)
- 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 auto attendants and call queues
Part of Implement and configure Teams Phone (30 to 35%)
- Create and configure resource accounts
- Assign licenses to resource accounts
- Assign phone numbers to resource accounts, including toll-free phone numbers
- Assign a resource account to an auto attendant or call queue
- Choose an appropriate call queue routing method, including call priorities
- Configure business hours and holidays for auto attendants
- Configure custom Music on Hold (MoH)
- Configure caller ID policies and outbound caller ID for call queues
- Create and configure voice applications policies for auto attendants and call queues
- Implement callback for call queues
- Configure the Queues app
Configure emergency calling
Part of Implement and configure Teams Phone (30 to 35%)
- Create and configure emergency calling locations
- Configure emergency call routing policies
- Configure emergency calling policies
- Configure networks and locations (Location Information Service (LIS))
- Validate emergency address and emergency calling from Teams clients
- Assign a verified emergency address location
- Troubleshoot dynamic emergency address
Assign Teams Phone licenses, phone numbers, and policies
Part of Implement and configure Teams Phone (30 to 35%)
- Assign a Teams Phone Standard license
- Assign a Teams Calling Plan
- Assign phone numbers to users by using the Microsoft Teams admin center
- Assign phone numbers in bulk by using PowerShell
- Assign Teams Phone policies to a specific user
- Create and assign policy packages
- Configure and assign Teams Phone policies by using group policy assignment
Configure and manage calling features for Teams Phone
Part of Implement and configure Teams Phone (30 to 35%)
- Configure Cloud Voicemail
- Configure group call pickup
- Configure Call Forwarding
- Configure Simultaneous Ring
- Configure call delegation
- Configure Audio Conferencing
- Configure private lines
Configure and manage Direct Routing for Teams Phone
Part of Implement and configure Teams Phone (30 to 35%)
- Configure connectivity for Teams Phone to an SBC
- Create and configure a PSTN gateway
- Create PSTN usage records
- Create and configure voice routes
- Create and configure voice routing policies
- Validate Direct Routing SBC connectivity
- Identify use cases for Location-Based Routing (LBR)
- Identify use cases for Local Media Optimization (LMO)
- Configure trunk translation rules
- Configure on-network conferencing for Direct Routing
- Configure SBA policies
- Manage emergency call routing policies for Direct Routing
- Configure phone number inventory for Direct Routing
- Troubleshoot Direct Routing by using the Teams admin center
Manage and maintain Teams Rooms and devices
Part of Configure and manage Teams Rooms and devices (20 to 25%)
- 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 Microsoft Teams admin center or the local Teams application settings
- Manage Teams Rooms from the Microsoft 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
- Troubleshoot proximity join issues
Configure and manage Teams Android devices
Part of Configure and manage Teams Rooms and devices (20 to 25%)
- Configure Teams IP phone policies
- Create and configure device configuration profiles for Android based devices
- Enable hotline for shared space devices
- Deploy Android devices remotely
- Configure custom displays for Teams Rooms on Android and Teams panels
- Specify Intune configuration requirements for AOSP and Microsoft Device Ecosystem Platform (MDEP) devices
Configure and manage Teams Rooms on Windows
Part of Configure and manage Teams Rooms and devices (20 to 25%)
- Specify domain group policy exclusions for Teams Rooms on Windows
- Configure custom displays for Teams Rooms on Windows
- Customize Teams Rooms on Windows settings by using an XML configuration file
- Configure settings for peripherals for Teams Rooms on Windows
Configure optional features for Teams Rooms and devices
Part of Configure and manage Teams Rooms and devices (20 to 25%)
- Configure HDMI ingest and options
- Configure a content camera
- Configure Teams casting
- Configure proximity join
- Configure room remote
- Configure Direct Guest Join
- Configure hot desking on Teams shared devices
- Configure AI-enabled voice and video capabilities for shared space devices
Configure BYOD spaces and bookable desks
Part of Configure and manage Teams Rooms and devices (20 to 25%)
- Create and publish room types
- Manage inventory, including discovery of or import of hardware
- Assign devices to room types
- Set up and configure bookable desks
- Manage and monitor shared space rooms that include bring-your-own devices
Study Plan
Turning the MS-721 outline into a plan.
Teams Phone is the heaviest domain at 30 to 35 percent, but we do not start there. We open with planning and design, because the choices you make about PSTN connectivity, devices and the network shape everything you configure later.
Meetings, webinars and town halls come next. These settings build on what you already know as a Teams admin, and they set up the Audio Conferencing and Teams Premium topics the exam leans on.
Then we spend the longest block on Teams Phone. Dial plans, calling policies, auto attendants, call queues, emergency calling and Direct Routing each get their own labs, because this is where small mistakes break real calls.
We close with Teams Rooms and devices, then the free Microsoft practice assessment and the exam sandbox. Whatever the practice assessment flags becomes your review list for the final week.
Exam Policies
How Microsoft runs the MS-721 exam.
MS-721 leads to Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate. Microsoft requires a score of 700 or greater to pass.
Microsoft notes that the bullets under each skill show how a skill is assessed, and related topics may also be covered. Most questions cover features that are generally available, but the exam can include Preview features if they are commonly used.
Before test day you can try the exam sandbox to see the exam interface, and take Microsoft's free practice assessment. If you use assistive devices or need extra time, Microsoft lets you request an accommodation. If the exam is not offered in your preferred language, you can request an extra 30 minutes.
Microsoft associate certifications expire annually. You renew by passing a free online assessment on Microsoft Learn, so earning MS-721 once is not the end of it. We show you how to keep it current.
Career Outlook
Where MS-721 can take you.
MS-721 fits the people who make Teams work as a phone system and a meeting room platform. Typical titles include unified communications engineer, voice engineer, collaboration engineer and Teams Rooms or AV engineer. The work spans PSTN connectivity, Direct Routing and session border controllers, emergency calling, room and device rollouts, and call quality.
The U.S. Bureau of Labor Statistics reports that the median annual wage for computer network architects was $134,050 in May 2025. That figure is a national midpoint. Where you live, how long you have been in the field and who you work for all move the number. Source: BLS Occupational Outlook Handbook.
Funding and PathPay
Ways to pay for MS-721 training.
Accumentum is an Army CA and Air Force COOL Approved Vendor. If you're serving, start with your education center and read our Army CA and Air Force COOL pages for the steps. We'll help you line up the course with your request.
Paying on your own? Our funding page covers every way to pay, and PathPay lists the courses that qualify for monthly plans.
Our funding page has every other option, and you can always talk with us or email info@accumentum.net before you enroll.
Frequently Asked Questions
MS-721 Collaboration Communications Systems Engineer training with Accumentum: scope, audience, skills measured, and public exam facts.
Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate, by passing Exam MS-721.
Engineers who plan, deploy, configure, maintain, and troubleshoot Teams Phone, meetings, Rooms, and certified collaboration devices.
Plan collaboration systems, configure meetings and events, implement Teams Phone including Direct Routing, and manage Teams Rooms and devices.
Twelve modules mapped to Microsoft published MS-721 skill domains.
Plan and design collaboration communications systems 20 to 25%. Configure and manage Teams meetings, webinars, and town halls 15 to 20%. Configure and manage Teams Phone 30 to 35%. Configure and manage Teams Rooms and devices 20 to 25%.
100 minutes (Microsoft credential page). Pearson VUE. Passing score 700 or greater. No invented prices or unofficial question counts.
Use Accumentum registration for MS-721 training dates and enrollment support. Email info@accumentum.net if you need help.
Microsoft requires a score of 700 or greater to pass.
Microsoft lists these domains:
- Plan and design collaboration communications systems, 20 to 25%
- Configure and manage Teams meetings, webinars, and town halls, 15 to 20%
- Implement and configure Teams Phone, 30 to 35%
- Configure and manage Teams Rooms and devices, 20 to 25%
Implement and configure Teams Phone is the largest at 30 to 35%. We give it the most lab time.
As of October 29, 2026, Microsoft lists 173 tasks across 19 skill groups. Our course covers all of them.
Microsoft associate certifications expire annually. You renew by passing a free online assessment on Microsoft Learn.
Yes. Microsoft offers a free practice assessment, plus an exam sandbox that shows you the exam interface.
Accumentum is an Army CA and Air Force COOL Approved Vendor. Start with your education center, and we'll help you with the rest.
Microsoft says most questions cover generally available features, but Preview features can appear if they are commonly used.
Enrollment
Enroll in Microsoft Collaboration Communications Systems Engineer Associate Certification Training (MS-721) with Accumentum.
Enroll in Accumentum MS-721 training to prepare for Exam MS-721. For course dates and enrollment support, visit Accumentum registration page linked below.
Prepare for MS-721 collaboration communications work.
Plan, configure, and manage Teams Phone, meetings, Rooms, and certified devices.