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| Vendor: | Microsoft |
|---|---|
| Exam Code: | MS-721 |
| Exam Name: | Collaboration Communications Systems Engineer |
| Exam Questions: | 274 |
| Last Updated: | May 16, 2026 |
| Related Certifications: | Microsoft 365, Teams Voice Engineer Expert |
| Exam Tags: | Modern work certifications Professional Microsoft 365 AdministratorSystems engineers |
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You need to implement Local Media Optimization.
https://docs.microsoft.com/en-us/microsoftteams/direct-routing-plan
You have a Microsoft Teams Phone deployment. Direct Routing is enabled for all users. The users can place and receive PSTN calls.
You need to create a new user policy to provide four-digit extension dialing for users to call analog endpoints that connect to the Session Border Controller (SBC).
Which three actions should you perform? Each correct answer presents part of the solution.
https://docs.microsoft.com/en-us/microsoftteams/what-are-dial-plans
https://docs.microsoft.com/en-us/microsoftteams/create-and-manage-dial-plans
You have a Microsoft Teams Phone deployment.
You have a call queue named Customer Service.
You need to ensure that when the agents of Customer Service make calls, the outbound calling name appears as Contoso, and the caller ID shows the phone number of Customer Service. Other users must NOT be affected.
Which three actions should you perform? Each correct answer presents a part of the solution.
NOTE: Each correct selection is worth one point.
You can manage caller ID policies by going to Voice > Caller ID policies in the Microsoft Teams admin center. You can use the global (Org-wide default) policy or create and assign custom policies. Users in your organization automatically get the global policy unless you create and assign a custom policy.
Create a custom caller ID policy
In the left navigation of the Microsoft Teams admin center, go to Voice > Caller ID policies. (A)
Select Add.
Enter a name and description for the policy.
Turn on or off Block incoming caller ID and Override the caller ID policy. (E)
Enter a Calling Party Name.
Under Replace the caller ID with, set which caller ID is displayed for users by selecting one of the following: (D)
User's number: Display the user's number.
Anonymous: Display the caller ID as Anonymous.
Resource account: Set a resource account associated with an Auto Attendant or Call Queue.
If you choose Resource account, you're prompted to specify a resource account for the next field, called Replace the caller ID with this resource account. Only resource accounts with an assigned phone number will be displayed. If you just assigned a phone number to the resource account, it may take a few minutes before the resource account is available for selection.
7. Select Save.
https://learn.microsoft.com/en-us/microsoftteams/caller-id-policies
Your network contains an on-premises Active Directory Domain Services (AD DS) domain named contoso.com.
You have a Microsoft 365 E5 subscription.
You are deploying 10 Microsoft Teams Rooms on Windows devices.
You need to join all the devices to contoso.com.
What should you do before you join each device to contoso.com?
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You are optimizing a network to better support voice and collaboration workloads in Microsoft Teams.
When the users are at a specific corporate site, you need to prevent the users from adding video during calls.
Solution: You run New-CsTeamsMeetingPolicy and set the -MediaBitRateKb parameter to 1.
Does this meet the goal?
Instead run New-CsTeamsNetworkRoamingPolicy and set the -AllowIPVideo parameter to $False.
Note: The New-CsTeamsNetworkRoamingPolicy cmdlet allows IT Admins to create policies for Network Roaming and Bandwidth Control experiences in Microsoft Teams.
The TeamsNetworkRoamingPolicy cmdlets enable administrators to provide specific settings from the TeamsMeetingPolicy to be rendered dynamically based upon the location of the Teams client. The TeamsNetworkRoamingPolicy cannot be granted to a user but instead can be assigned to a network site. The settings from the TeamsMeetingPolicy included are AllowIPVideo and MediaBitRateKb. When a Teams client is connected to a network site where a CsTeamRoamingPolicy is assigned, these two settings from the TeamsRoamingPolicy will be used instead of the settings from the TeamsMeetingPolicy.
https://docs.microsoft.com/en-us/powershell/module/skype/new-csteamsnetworkroamingpolicy
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