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MS-720 · Question #55

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.contos

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Monitor and troubleshoot Microsoft Teams Phone

Question

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?

Exhibit

MS-720 question #55 exhibit

Options

  • AThe certificate does not match the FQDN on the SBC.
  • BThe firewall blocks inbound traffic on port 443 to the SBC.
  • COnly TLS 1.0 is enabled on the SBC.
  • DMicrosoft 365 Phone System licenses are not assigned to the users.

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Topics

#Direct Routing#SBC certificates#TLS#Troubleshooting
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