Microsoft Teams Calling is a comprehensive communication solution offered by Microsoft that integrates voice calling capabilities into the Microsoft Teams platform.

• https://www.microsoft.com/en-au/microsoft-teams/microsoft-teams-phone

It allows users to make and receive calls directly within the Teams application, transforming it into a complete unified communication platform.

Here's an explanation of the main Microsoft Teams Calling services:
 

1. Calling Plans: Microsoft offers Calling Plans, which are bundled calling services provided by Microsoft directly. These plans allow users to make and receive phone calls to and from landlines and mobile phones. Calling Plans can be purchased as a part of Microsoft 365 subscriptions, eliminating the need for separate telephony providers.
    

2. Direct Routing: Direct Routing enables organizations to connect their existing telephony infrastructure, such as on-premises PSTN (Public Switched Telephone Network) or SIP (Session Initiation Protocol) trunks, to Microsoft Teams. By using Direct Routing, organizations can leverage their existing telephony investments while integrating Teams for voice calling.
    

3. Calling in Microsoft Teams: Microsoft Teams Calling provides a complete calling experience within the Teams application. Users can make and receive calls from anywhere, using their computer, smartphone, or Teams-certified desk phones. They can also access features such as call transfer, hold, call forwarding, voicemail, and more.
    

4. Call Queues: Call Queues allow organizations to efficiently manage incoming calls to specific departments or teams. Calls are placed in a queue and routed to available agents based on predetermined criteria. This feature ensures that calls are handled in an organized and timely manner.
    

5. Auto Attendants: Auto Attendants provide automated call handling and routing options. They allow callers to navigate through a menu system using touch-tone or voice commands to reach the desired destination. Auto Attendants can be configured to provide information, transfer calls, or take voicemail messages.
    

6. Call Analytics: Call Analytics is a powerful reporting and analysis tool within Teams that provides insights into call quality and usage patterns. It helps organizations identify and troubleshoot call quality issues, monitor adoption and usage trends, and make data-driven decisions to improve their communication infrastructure.
    

7. Emergency Calling: Microsoft Teams Calling supports emergency calling, allowing users to make emergency calls to local emergency services. The system automatically provides the caller's location information to the emergency services for quick and accurate response.
    

These services offer organizations a robust and flexible communication solution, enabling them to handle internal and external calls efficiently while leveraging the collaboration features of Microsoft Teams.