Microsoft Teams continues to innovate and improve its functionality, offering more and more tools to help admins solve their colleagues’ problems. In March 2025, a new feature will be introduced: the SIP Call Flow Diagram tool in the Teams Administration Center. This tool will enable administrators to troubleshoot Direct Routing calls autonomously by viewing detailed SIP and SDP data.
What is SIP?
SIP, or Session Initiation Protocol, is a protocol used to establish, modify and terminate communication sessions such as VoIP calls. SDP, or Session Description Protocol, is used to describe the multimedia parameters of communication sessions.
Functionality availability
The feature will be available worldwide from the beginning of March 2025, with deployment scheduled to finish by the end of the month. No administrative action is required prior to the roll-out, making adoption much easier.
How this feature will affect your organization
With the introduction of the SIP call flow diagram, administrators will be able to view SIP requests, responses and associated SDP data between the Microsoft Teams proxy and the SBC (session border controller) through which the call was routed. This data will be available for all calls made between 30 minutes and 30 days prior to consultation.
To access the SIP call flow diagram tool, administrators will need to :
- Log in to the Teams administration center.
- Go to the left-hand menu, under “Analytics & reports” and select “Usage reports”.
- Create and run a new PSTN and SMS usage report (overview).
- Once the report has been generated, access the “Direct Routing” tab and select the call to be analyzed.
- Click on the “SIP call flow” button in the report to display the detailed diagram.
Conclusion
The new SIP call flow diagram tool in Microsoft Teams is a major breakthrough for administrators looking to optimize troubleshooting of Direct Routing calls. Thanks to its intuitive interface and detailed data, this tool enables faster problem resolution, reducing downtime and improving team efficiency.
