Outage in Microsoft 365

Users may be unable to make outbound Public Switched Telephone Network (PSTN) calls in the new Microsoft Teams client

Resolved Minor
January 25, 2024 - Started over 1 year ago - Lasted about 8 hours

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Outage Details

Users may be unable to make outbound PSTN calls in the new Microsoft Teams client.
Components affected
Microsoft Teams
Latest Updates ( sorted recent to last )
over 1 year ago - at 01/25/2024 01:19PM

Title: Users may be unable to make outbound Public Switched Telephone Network (PSTN) calls in the new Microsoft Teams client

User impact: Users may be unable to make outbound PSTN calls in the new Microsoft Teams client.

More info: Impact is specific to users who are making outbound PSTN calls in the new Microsoft Teams desktop client and. As a workaround, users may be either able to switch back to the classic Microsoft Teams desktop client to make outbound PSTN calls or use the dial pad to make calls.

Current status: We've reviewing Microsoft Teams logs to help us understand why PSTN calls are failing in the new Microsoft Teams desktop client. However, we've identified a potential issue with our unified call flow, which is contributing to PSTN call failures and we're working on developing a fix to resolve impact for a part of the failures.

Scope of impact: Impact is specific to some users who are served through the affected infrastructure.

Next update by: Thursday, January 25, 2024, at 8:30 PM UTC

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