Direct Routing support
Connect Microsoft Teams Phone to the public phone network through certified SBC architecture and BRCK voice connectivity.
Microsoft Teams
SIP Trunking for Microsoft Teams
BRCK helps organizations connect Microsoft Teams Phone to reliable SIP trunking through Direct Routing architecture that is built for migration, scale, and enterprise-grade uptime.
Direct Routing, simply explained
Direct Routing lets Microsoft Teams use enterprise SIP connectivity through a certified session border controller. In plain English: Teams becomes your phone system experience, while BRCK provides the voice path to the outside world.
Why BRCK for Teams voice
Because Teams voice is still telecom, even when it looks like software.
The Teams interface may feel simple to end users, but the production rollout still depends on routing, emergency calling, number management, and a voice provider that can handle real cutovers. BRCK brings that telecom layer with a modern execution style.
Best-fit scenarios
Replacing legacy PBX or PRI infrastructure with Teams Phone.
Standardizing voice across distributed teams already living in Microsoft 365.
Rolling out Teams voice while keeping existing numbers and compliance requirements intact.
Architecture
How BRCK connects Teams to the PSTN
The architecture is straightforward when designed correctly: Teams users place and receive calls inside Microsoft, certified SBC infrastructure handles the secure voice edge, BRCK delivers SIP trunking and routing logic, and calls reach the public network through resilient carrier connectivity.
Teams voice architecture
1
Teams users
Employees make and receive calls inside Microsoft Teams across desktop, mobile, and certified devices.
2
Direct Routing
Teams voice traffic is passed through Direct Routing to a certified SBC environment.
3
BRCK SIP trunking
BRCK provides the SIP connectivity, routing, and operational support behind the voice service.
4
PSTN
Inbound and outbound calls reach the public phone network with redundancy and enterprise support expectations.
Supported capabilities
What BRCK helps make work inside Teams voice.
From the first migration plan through ongoing operations, BRCK supports the pieces that usually make or break a Teams voice rollout.
Enterprise voice reliability
BRCK brings owned infrastructure, routing discipline, and support that treats Teams voice like production infrastructure, not a side feature.
Migration guidance
Move from legacy PBX, PRI, or another carrier model into Teams voice with a cleaner cutover plan and fewer surprises.
Number porting support
Keep existing numbers while transitioning users, call flows, and emergency calling data into the Teams environment.
E911 and policy alignment
Plan emergency calling, user enablement, and routing behavior in a way that fits enterprise governance instead of fighting it later.
Scalable rollout patterns
BRCK supports phased migrations, hybrid environments, and voice standardization across multiple sites and business units.
Planning a Teams rollout?
Book a Teams voice consultation with BRCK.
We can help scope Direct Routing, evaluate migration paths, and design the voice foundation behind a cleaner Microsoft Teams deployment.