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Exam MS-720 topic 6 question 21 discussion

Actual exam question from Microsoft's MS-720
Question #: 21
Topic #: 6
[All MS-720 Questions]

You have a Microsoft Teams Phone deployment.

You are deploying Direct Routing.

All users have a SIP URI in the format of [email protected]. The Session Border Controller (SBC) is named sbc.voice.contoso.com.

When troubleshooting errors on the SBC, you receive the warning shown in the following exhibit.



What is a possible cause of the issue?

  • A. The tenant is missing a vanity domain of voice.contoso.com.
  • B. The firewall blocks outbound traffic on port 443 to Microsoft Teams.
  • C. The firewall blocks inbound traffic on port 443 to the SBC.
  • D. The firewall blocks traffic to the signaling port on the SBC.
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Suggested Answer: D 🗳️
by [deleted] at April 1, 2025, 11:30 a.m.

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