On Thursday the 21st of July, 2022 Microsoft Teams was down for more than 2 hours in many places around the world. In Microsoft’s post incident report (TM402718/MO402741) they said:
“Telemetry indicated that approximately 300k calls were impacted by this event. The Asia Pacific (APAC) region was most affected due to business hours coinciding with the impact window. Additionally, Direct Routing and Skype MFA were mostly impacted service.”
Just another reason why many businesses prefer separate cloud telephony/UCaaS providers that embed/integrate to Teams.