M365 Service Health Notification

Skype for Business service alert Incident information Title: Can't make outbound Public Switched Telephone Network (PSTN) calls from conferences within Skype for Business ID: LY214813 Status Service Restored Details Title: Can't make outbound Public Switched Telephone Network (PSTN) calls from conferences within Skype for Business User Impact: Users may have experienced failures when making outbound PSTN calls from conferences within Skype for Business. More info: This issue could have potentially affected any user hosted in North America that tried to use the "Call Me" feature to an international number. Final status: We've confirmed that routing user request traffic to alternative infrastructure has successfully mitigated the issue. Scope of impact: Impact was specific to any user hosted in North America. Start time: Monday, June 1, 2020, at 4:11 AM UTC End time: Monday, June 1, 2020, at 7:00 AM UTC Root cause: The issue was caused by an unexpected increase in user request traffic causing a subset of infrastructure, responsible for processing outbound PSTN calls from conferences, to perform below acceptable thresholds. Next steps: - We're analyzing performance data and trends on the affected systems to help prevent this problem from happening again. This is the final update for the event. Thank you, The Microsoft team To customize what's included in this email, who gets it, or to unsubscribe, set your Service health preferences. If you are receiving this email because your Admin added you as a recipient, please contact your Admin to unsubscribe. Microsoft respects your privacy. Review our online Privacy Statement. Microsoft Corporation One Microsoft Way Redmond, WA USA 98052