SolNet
News Kontakt Webmail
TitelTelefonie: Teams Störung bei Microsoft, keine Anrufe von/zum PSTN möglich
BeeinträchtigungTIEF
StatusERLEDIGT
AnfangWed 12.10.2022 15:09
EndeThu 13.10.2022 16:00
BetrifftAlle Microsoft Teams Nutzer welche direct routing zum PSTN nutzen.
ProblemWir haben festgestellt dass Verbindungen von/zu Microsoft für Teams Direct Routing nicht stabil sind.
Dies führt dazu, dass teilweise Anrufe von/zum PSTN nicht möglich sind.
Microsoft hat untenstehende Meldung nun im Teams Admin Center veröffentlicht, wir werden dieses Ticket updaten sobald es Neuigkeiten gibt.

Title:
Users are unable to make outbound Public Switched Telephone Network (PSTN) calls in Microsoft Teams

User Impact:
Users are unable to make outbound PSTN calls in Microsoft Teams.

Current status:
We've received reports that impact associated with TM445517 is still occurring as the reversion of the offending update was unexpectedly not completed. We're restarting the reversion process to ensure impact is remediated as expected.

Scope of impact:
Your organization is affected by this event, and any user that attempted to make PSTN calls in Microsoft Teams was impacted.

Start time:
Wednesday, October 12, 2022, 3:09 PM (1:09 PM UTC)

Root cause:
A change made during a recent standard service update had inadvertently introduced a code regression and caused impact to outbound PSTN calls.

UPDATE 13.10.2022 - 13:50:13:
Current status:
We've successfully reverted the offending update, and confirmed through monitoring that the majority of impact has been remediated. However, we've further identified that a DNS issue may be contributing to the remaining impact. We're analyzing system logs and DNS connections to determine our next troubleshooting steps.

Scope of impact:
Impact is specific to some users who are served through the affected infrastructure in Europe, Middle East, and Africa.

UPDATE 13.10.2022 - 15:50:13:
Current status:
Following our review of affected DNS connections, we've identified that a Transport Layer Security (TLS) error in a section of infrastructure responsible for serving user traffic, may be the cause of the DNS issue resulting in the remaining impact. We're rerouting user requests to alternate healthy infrastructure to mitigate impact.

Scope of impact:
Impact is specific to some users who are served through the affected infrastructure in Europe, Middle East, and Africa.

UPDATE 13.10.2022 - 16:00:00:
Final status: We've successfully rerouted user requests to alternate healthy infrastructure, and confirmed impact has been remediated after a period of monitoring.

Microsoft hat die Störung behoben.
Zurück zur Übersicht