MS-721 Practice Question 3319
Exam: MS-721
Domain: Plan and design collaboration communications systems
Difficulty: hard
You are planning PSTN connectivity. The enterprise operates in 15 countries with strict regulatory restrictions that prohibit storing telephony data or terminating trunk traffic outside national borders. Which model is required?
Answer Options
A
Direct Routing using local in-country SBCs and local telco trunks
B
Microsoft Calling Plans hosted in the central US data center
C
Audio Conferencing dial-in numbers only
D
Consumer Skype federation
Correct Answer
A: Direct Routing using local in-country SBCs and local telco trunks
Explanation
Direct Routing using local in-country Session Border Controllers (SBCs) and local PSTN trunks keeps media and trunk termination within sovereign borders, satisfying telecom regulations.