Collaboration Communications Systems Engineer — Question 67

You have a Microsoft Teams Phone deployment that uses Direct Routing. The deployment has the following configurations:

• Direct Routing Session Border Controller (SBC) public IP subnet: 198.51.100.0/24
• Teams client external IP subnet: 203.0.113.0/24
• Teams client internal IP subnet: 192.168.0.0/24

You need to configure the network topology to support emergency call routing.

Which network range should you add to the trusted IP addresses?

Answer options

Correct answer: A

Explanation

The correct answer is A, as the Teams client external IP subnet (203.0.113.0/24) needs to be trusted for emergency call routing. Options B and D are internal subnets which do not apply for external emergency calls, while option C is unrelated to the specific setup of the Teams environment.