MS-721 Practice Question 3375
Exam: MS-721
Domain: Configure and manage Teams Phone
Difficulty: hard
What is the function of the "PSTN usage" tag in Microsoft Teams Phone architecture?
Answer Options
A
A logical tag string binding Voice Routing Policies to Voice Routes
B
A measurement of CPU processor utilization on the SBC
C
The total duration of phone calls made per month
D
A billing invoice identifier generated by telecom carriers
Correct Answer
A: A logical tag string binding Voice Routing Policies to Voice Routes
Explanation
A PSTN usage is an arbitrary text string (e.g., "US-Local") that binds Voice Routing Policies to Voice Routes, ensuring users only dial out through authorized gateways.