Microsoft Teams calls: diagnosing common issues

This page gives extra detail on errors that you might see when using Microsoft Teams for your incident calls.

Microsoft Teams authentication failed

Seeing this error means that we failed to authenticate with Microsoft while creating your call. Please go to Settings → Integrations and check that your connection to Microsoft is set up correctly.

External participants not allowed

This error can occur when Microsoft Teams calls are set up to forbid external participants. Please read Microsoft’s article on this issue.