Direct Routing is where Teams voice projects succeed or fail. This course goes deep on SBC requirements, routing logic, media optimisation and regulatory requirements such as Location-Based Routing.
We also cover Operator Connect: how it differs operationally from Direct Routing, and how to choose between the two (or combine them) for multinational deployments.
14 h video + 16 h labs, about 4 weeks at 6–8 hours per week.
5 modules · 21 lessons
Hands-on in a browser-based pod. Each lab starts from a clean snapshot.
| # | Lab | Skills | Time |
|---|---|---|---|
| 1 | Pair two SBCs with failover | SBC pairing, failover | 75 min |
| 2 | Tenant dial plans and normalisation rules | Normalisation | 45 min |
| 3 | Media bypass with Local Media Optimisation | LMO | 90 min |
| 4 | Location-Based Routing for a regulated site | LBR | 60 min |
| 5 | Troubleshoot failing Direct Routing calls | SIP traces | 60 min |
Runs on: Microsoft Teams Direct Routing Labs
| Exam | Blueprint domain | Weight | Covered in |
|---|---|---|---|
| MS-721 | Configure and manage Teams Phone (PSTN connectivity) | 40–45% | Modules 1–5 |
Lead Instructor, Microsoft Teams Voice
Tomasz has led Teams Phone rollouts for multinational enterprises, covering Direct Routing, Operator Connect and Teams Rooms at scale. He specialises in hybrid Cisco and Teams coexistence and migration.
Watch before you buy, no sign-up required.
“The LMO module alone was worth the price. I finally understand when media goes where.”
“Excellent multi-country design guidance, including LBR scenarios I hadn't seen elsewhere.”
The Microsoft Teams voice engineer course: Teams Phone, Direct Routing, Operator Connect, devices, meetings and troubleshooting, mapped to MS-721.
MS-721
Connect Microsoft Teams Phone to the PSTN and to CUCM using Cisco CUBE as a certified Direct Routing SBC. This is the course where the two platforms meet.
Supports MS-721
Design and run voice estates where Cisco CUCM, Webex Calling and Microsoft Teams coexist: shared dial plans, SBC architecture, migration and operations.
Design capstone (Train Collab certificate of completion)