MS Teams System Connectivity

Source	Destination	Port / protocol	Notes
Cloud Arbitrator	Dashboard Server	5432 TCP	Pushes data to the dashboard to display dashboard data
Client PC – GUI Interface and CLI Management Access	Correlation Server / Dashboard Server	443, 8443, 22, 80 TCP	User Interface Access
Arbitrator	VOSS Webhooks Server	443 TCP	The VOSS Webhooks server receives call record notifications from Microsoft. The Webhooks server only receives call record IDs with minimal details. The Arbitrator periodically pulls these call record IDs from the Webhooks server. In order to do this, the Arbitrator requires access to the internet, specifically, to cloud.voss-solutions.com on port 443.
Arbitrator	Microsoft (https://graph.microsoft.com/v1.0)	443 TCP	The Arbitrator will then pull the full call record details directly from Microsoft, using the https://graph.microsoft.com/v1.0 API.