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| Vendor: | Microsoft |
|---|---|
| Exam Code: | MS-721 |
| Exam Name: | Collaboration Communications Systems Engineer |
| Exam Questions: | 274 |
| Last Updated: | October 4, 2026 |
| Related Certifications: | Microsoft 365, Collaboration Communications Systems Engineer Associate |
| Exam Tags: | Modern work certifications Professional Microsoft 365 AdministratorSystems engineers |
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You have a Microsoft Teams Phone deployment.
You need to implement Local Media Optimization for Direct Routing users at a site.
Users at the site frequently perform the following actions:
.
Which action will be affected by implementing Local Media Optimization?
A- Park calls.
B- Transfer calls to other users.
C- Escalate calls to conference calls.
D- Place calls on hold.
https://docs.microsoft.com/en-us/microsoftteams/direct-routing-media-optimization#known-issues
You have a Microsoft Teams Phone deployment.
You are deploying Direct Routing by using a certified Session Border Controller (SBC). The FQDN of the S6C is sbcVcontoso.com. You use signaling port 5067.
You cannot place calls and receive an error message m the Microsoft Teams admin center as shown in the following exhibit.

What is a possible cause of the issue?
You have a Teams Phone deployment that has users in Canada and the United States.
You have a Session Border Controller (SBQ in Calgary and an SBC In New York City. Both SBCs are connected to Direct Routing. You plan to implement toll bypass for the users in Canada. The solution must meet the following requirements:
* Prioritize the New York City SBC for calls to numbers in the United States.
* Leverage the Calgary SBC for resiliency if the New York City SBC is unavailable.
You create a PSTN usage named Canada and associate this policy to a voice routing policy.
Which two voice routes should you create with the Canada PSTN usage? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
Your company uses configuration profiles to manage Microsoft Teams-certified IP phones. The Standard configuration profile is applied to the IP phones.
The help desk receives reports that several user phones fail to lock automatically after the timeout period.
You need to verify whether the configuration profile is applied to the problematic phones.
Solution: From Devices in the Microsoft Teams admin center, you select IP Phones, find the reported phones, and review the Configuration profile column.
Does this meet the goal?
You have a Microsoft Teams Phone deployment.
You are deploying Direct Routing by using a certified Session Border ControNer CSBC). The FQDN of the SBC is sbc1.contoso.com. You use signaling port 5067.
You cannot place calls and receive an error message in the Microsoft Teams admin center as shown in the following exhibit.

What is a possible cause of the issue?
https://docs.microsoft.com/en-us/microsoftteams/troubleshoot/phone-system/direct-routing/sip-options-tls-certificate-issues
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