All regions are up and operating normally.

We are continuing to monitor for any further issues.

At approximately 22:30Z Tuesday, we pushed a change to production that prevented our auto-scalers from creating new instances, preventing new calls from successfully joining our service. We have reverted the change and are reviewing our processes to ensure this issue does not occur in the future.

We have identified a capacity issue and are presently increasing the available resources.

We are investigating reports of calls failing to join Teams meetings.