Users' calls may have failed in Microsoft Teams.
- Status
- Wiederhergestellt
- Funktion
- Calling
- Region
- Nicht angegeben (alle Regionen)
- Beginn
- 16.10.2026, 04:15 Uhr
- Behoben
- 16.10.2026, 19:26 Uhr
- Dauer
- 15 Std. 10 Min.
Mehr Informationen
Specifically, reports from affected users indicated that Public Switched Telephone Network (PSTN) direct routing calls for certain accounts associated with call queues in Microsoft Teams weren't being connected. Additionally, resource accounts and auto attendants associated with these call queues may not have received inbound calls.
Betroffen
Impact was specific to users attempting to make calls to phone numbers that had recently undergone assignment changes in Microsoft Teams.
Ursache
A recent configuration change that managed how phone numbers were processed was responsible for impact.
Next steps: We're reviewing and improving our configuration change procedures to detect and prevent similar issues from occurring again in the future.
This is the final update for this event.
Abschluss
We've confirmed that the recent configuration change that managed how phone numbers were processed was responsible for impact, and affected users confirm that impact is remediated after we reverted this change and replaying any changes to phone number that occurred during the window of impact.
Verlauf
Alle Updates von Microsoft zu dieser Meldung, das neuste zuoberst.
- 16.10.2026, 19:32 Uhr
We've confirmed that the recent configuration change that managed how phone numbers were processed was responsible for impact, and affected users confirm that impact is remediated after we reverted this change and replaying any changes to phone number that occurred during the window of impact.
- 16.10.2026, 17:30 Uhr
We've reverted the recent configuration change that relates to how phone numbers are processed and are monitoring to confirm if this change caused the reported impact and if the issue is resolved.
- 16.10.2026, 15:26 Uhr
We’ve reprovisioned the affected resource account-to-phone number association as an initial mitigation. During our investigation, we identified a recent configuration change that may be contributing to the impact. We’re investigating this change to determine whether it’s responsible for the issue.
- 16.10.2026, 11:23 Uhr
We’ve identified a potential issue with cached information not updating as expected following phone-number assignment changes. We’re reprovisioning the affected resource account-to-phone number association as an initial mitigation and monitoring the results to validate our root cause hypothesis and determine whether additional steps are required.
- 16.10.2026, 06:39 Uhr
We're continuing to review user-provided service logs and call logs to gain insight into the underlying source of impact and determine our next steps.
- 16.10.2026, 04:52 Uhr
We're reviewing and analyzing user-provided service logs and contextual details to assist with our investigation and determine our next troubleshooting steps.
- 16.10.2026, 04:21 Uhr
We're investigating a potential issue with Microsoft Teams and checking for impact to your organization. We'll provide an update within 30 minutes.
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