Online Access Free MS-721 Practice Test
| Exam Code: | MS-721 |
| Exam Name: | Collaboration Communications Systems Engineer |
| Certification Provider: | Microsoft |
| Free Question Number: | 376 |
| Posted: | Sep 06, 2026 |
You have a Teams Phone deployment that uses Direct Routing on a single Session Border Controller (SBC).
Users report that outbound PSTN calls are failing, but inbound PSTN calls are successful.
When you review the SBC logs, you discover that Microsoft is responding to SIP option requests, but is NOT sending SIP option requests.
What is the cause of the issue?
Case Study 4 - Northwind Traders
Overview
Northwind Traders is a publicly traded international investment firm that has offices in San Francisco, New York, Berlin, and London.
Northwind Traders has the following departments:
- IT
- Sales
- Investment
- Management
- Investor relations
- Legal and compliance
Users in the investment department work remotely.
The IT department in the London office provides support for the users in the Berlin office.
Existing Environment. Microsoft Office 365 Environment
Northwind Traders has a Microsoft 365 subscription that contains four users named User1, User2, User3, and User4. All the users are assigned Microsoft 365 E5 and Microsoft Teams Premium licenses. User3 is granted call delegation permissions for User2.
The company uses Calling Plans.
The subscription contains the devices shown in the following table.
Each user has a Teams Phone device.
An auto attendant is configured for the IT department support desk at the London office. Another auto attendant is configured for the investor relations department. The resource account for each auto attendant is assigned a Teams Phone Resource Account license.
Existing Environment. Partner Organization
Northwind Traders partners with a company named Contoso, Ltd. Contoso has a Cisco Webex video conferencing solution.
Existing Environment. Problem Statements
Northwind Traders identifies the following issues:
- When external customers call Direct Inward Dial (DID) numbers assigned to former employees of the San Francisco office, the customers receive a message that the number is out of service.
Management has requested that all calls to the DID numbers of former employees be directed to the call queue of the reception area at the San Francisco office.
- The users at Northwind Traders can accept meeting invitations from the users at Contoso by using SF_Dev_1, but the Northwind Traders users cannot join the meetings from SF_Dev_1.
- Employees report that the meeting schedule displayed on LN_Dev_2 includes confidential information, which breaches Northwind Traders security policies.
Requirements. Planned Changes
Northwind Traders plans to implement the following changes:
- For the auto attendant of the London office support desk, configure a DID number that will be used for all inbound and outbound calls. The solution must ensure that individual agents do NOT require dedicated phone numbers.
- Ensure that User1 can modify the greeting of the inbound call queue for the investor relations department by using the Teams client only.
- Ensure that external customers can call User2 without User3 being notified of the incoming call.
- Open a new office in South Africa.
Requirements. Technical Requirements
Northwind Traders identifies the following technical requirements:
- Create a report that estimates the bandwidth required for the planned office in South Africa.
- Ensure that all Northwind Traders users can enable end-to-end encryption.
- Ensure that all meetings scheduled by the users in the legal and compliance department have end-to-end encryption enabled by default.
- Minimize Calling Plan costs.
- Ensure that the users in the management department can create and schedule Teams events for 950 shareholders.
- Ensure that the management department users can manually approve event registrations for the shareholder meetings.
- Ensure that the investment department users can configure their emergency location by using the Teams client.
- Ensure that the users in the IT department can only access the Microsoft Teams admin center by using Privileged Identity Management (PIM).
- Ensure that all solutions follow the principle of least privilege.
Hotspot Question
You need to resolve the issue on SF_Dev_1.
How should you complete the PowerShell command? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Your company has a main office in Seattle and a branch office in Portland.
The company has a Microsoft 365 E3 subscription that uses Microsoft Teams.
You configure and assign a network roaming policy to each office.
You need to ensure that when a user joins a meeting from either office, the assigned network roaming policy settings are used.
What should you do from the Microsoft Teams admin center?
You have a Microsoft Teams Phone deployment.
You deploy a Teams device.
You need to configure one-touch video calls to be routed to a predefined user.
What should you implement?
Hotspot Question
You have a Microsoft Teams Phone deployment.
You have a dial plan that contains the following normalization rule:
- Pattern: ^8?(\d{7})$
- Translation: +1330$1
How will the phone numbers be normalized? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
