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On November 22, 2021, at ~7:44 am UTC, Microsoft communicated via tweet (@MSFT365status) that they were investigating an issue in which users were unable to load images in Microsoft Teams chats or channels.
For IT professionals and system admins with Microsoft admin center access, the initial service incident # was TM299667.
On June 14, 2021, at ~9:09 pm UTC, Microsoft indicated that they were investigating a Microsoft Teams issue impacting PSTN calls, with Australia as the impacted region. The service incident number was TM262155.
On June 11, 2021, at ~3:02 pm UTC, Microsoft began reporting a Microsoft Teams issue in which incoming calls were being sent straight to voicemail.
Approximately an hour later, Microsoft was reporting on issue identification and a remediation effort (rollback) was underway.
On February 17, 2021 at ~4:00 pm UTC, Microsoft reported an issue that was causing users in North America to experience delays when receiving chat messages within Microsoft Teams.
On February 12, 2021 at ~1:30 am UTC, Microsoft reported an issue that was preventing users from accessing Microsoft Teams.
Shortly after, Microsoft then reported that they were currently investigating a potential networking issue that may be causing various issues.
On February 4, 2021, at ~4:30 pm UTC, Microsoft reported an issue that was causing some users in North America to experience issues when attempting to join meetings in Microsoft Teams.
Many users took to Twitter to express their frustration due to little information available in the Service Health Dashboard and the multiple issues that had taken place in the past week.
On January 18, 2021, at ~10:30 am UTC, Microsoft reported an issue that was affecting chat functionality within Microsoft Teams in the EMEA region.
Shortly after, Microsoft reported that they had redirected traffic and that monitoring was showing signs of recovery.
On January 12, 2021 at ~4:45 pm UTC, Microsoft reported an issue with SharePoint and OneDrive for Business and Microsoft Teams.
Shortly after, Microsoft confirmed that these issues were part of the same problem and that services were recovering. They were still attempting to discover the root cause of the problem and informed users that more information could be found in the admin center.
On December 7, 2020, at ~3:00 pm UTC, Microsoft reported an issue with call quality within Microsoft Teams and that more details would be reported shortly.
On December 2, 2020 at ~4:00pm UTC, Microsoft reported an issue that was intermittently preventing some users from accessing files within Teams. They reported they were working to identify the cause of the issue and that more information would be available soon.