direct routing and sbc. peer to peer with a pc between them? it's a sbc!
gemini ai:
"In Microsoft Teams, a Session Border Controller (SBC) is a crucial component when using Direct Routing for voice connectivity. It acts as an intermediary between the Microsoft Phone System and your on-premises telephony network or a third-party telephony provider.
Here's how the SBC is used for Microsoft Teams:
1. Connecting to the Public Switched Telephone Network (PSTN): The SBC enables Microsoft Teams to connect to the PSTN, allowing users to make and receive external calls. It translates the signaling and media between the Microsoft Phone System (which uses the Session Initiation Protocol - SIP) and the PSTN (which may use various protocols).
2. Security and Interoperability: The SBC provides security features such as encryption, access control, and call admission control, protecting your network from unauthorized access and potential threats. It also ensures interoperability between different communication protocols and systems.
3. Call Routing and Management: The SBC can route calls between the Microsoft Phone System and your on-premises PBX or other telephony infrastructure, providing flexibility and control over call flow. It can also provide features like call admission control, call quality monitoring, and call detail records.
4. Resilience and Redundancy: By deploying multiple SBCs in a resilient configuration, you can ensure high availability and redundancy for your Microsoft Teams voice infrastructure. If one SBC fails, another can take over, minimizing downtime and ensuring uninterrupted communication.
Important Considerations:
Certification: Microsoft requires the use of a certified SBC for Direct Routing. You can find a list of certified SBCs on the Microsoft website.
Deployment: The SBC can be deployed on-premises, in the cloud, or in a hybrid environment. The choice depends on your organization's specific needs and requirements.
Configuration: Proper configuration of the SBC is crucial to ensure optimal performance and reliability of your Microsoft Teams voice infrastructure.
By leveraging the capabilities of an SBC, you can extend the reach of Microsoft Teams to the PSTN, allowing users to communicate seamlessly with external parties while ensuring security, interoperability, and resilience."
