01
Voice Architecture Control
Govern how Teams voice sessions are secured, routed, normalized and managed across carriers, sites and external telephony networks.
Microsoft Teams Direct Routing SBC
Secure Microsoft Teams voice with Sentinel SBC platforms.
M5 Technologies Sentinel SBCs give enterprises, operators and service providers the control layer required to secure, scale and modernize Microsoft Teams Direct Routing with stronger SIP security, carrier flexibility and voice infrastructure resilience.
Teams Voice Edge
TEAMS • SIP TRUNK • SBC • CARRIER • PSTN
DIRECT ROUTING
SIP SECURITY
CARRIER CHOICE
ENTERPRISE VOICE
TeamsDirect Routing architecture
SBCSecure voice control layer
SIPCarrier and PSTN flexibility
Secure EdgeTLS, SRTP, SIP normalization and topology hiding for enterprise voice.
Carrier FreedomBring your own SIP carrier and maintain long-term telecom flexibility.
Hybrid MigrationBridge Teams with PBXs, SIP trunks and legacy telephony environments.
Virtual + HardwareChoose virtual or appliance SBC platforms for your deployment model.
Strategic advantage
More than a PSTN bridge: a real voice control layer for Microsoft Teams.
Microsoft Teams is the collaboration experience. The SBC is the intelligence, security and routing layer that makes enterprise voice operational. Sentinel SBCs help organizations secure Teams voice, preserve carrier choice, simplify migration and create stronger long-term communications value.
02
Carrier Independence
Maintain freedom across SIP providers, geographies and cost structures while avoiding narrow carrier-locked operating models.
03
Long-Term Value
Support enterprise modernization, managed voice services and partner-led Direct Routing strategies with a true SBC platform.
Teams voice positioning
Everything needed to deploy Teams voice with confidence.
Sentinel SBCs provide the technical control required to interconnect Teams voice with external telecom services, protect the SIP edge and support business continuity across complex environments.
Core Teams capabilities
- Microsoft Teams to SIP trunk and PSTN interconnection.
- SBC policy control, session management and routing intelligence.
- Carrier and PSTN flexibility for enterprise and provider environments.
- Coexistence with PBX, SIP trunk and legacy voice infrastructure.
Security and operations
- TLS, SRTP, SIP normalization and topology hiding.
- Protection against malformed SIP traffic and exposed voice edges.
- Monitoring of QoS, session activity and voice performance.
- Support for enterprise, service provider and hybrid deployment models.
Why Sentinel wins
5 reasons Sentinel SBCs create a stronger Microsoft Teams voice strategy.
The right SBC does not just enable Direct Routing. It shapes how secure, flexible, scalable and economically durable your Teams voice architecture becomes over time.
1. ControlDedicated voice control layer for sessions, routing, security and policy enforcement.
2. FlexibilityCarrier independence across regions, providers and business units.
3. SecuritySIP edge protection with encryption, normalization and topology hiding.
4. MigrationStructured coexistence between Teams, PBX, SIP trunks and legacy voice.
5. GrowthFoundation for enterprise expansion and provider-led managed voice services.
Platform comparison
Compare Sentinel SBC platforms for Microsoft Teams Direct Routing.
Choose the deployment model that aligns with your Teams voice strategy, branch architecture, enterprise scale or service-provider environment.
| Platform | Form Factor | Positioning | Recommended Environment | Deployment Model | Key Advantage |
|---|---|---|---|---|---|
| Sentinel CS Virtual SBC | Virtual SBC software | High-scale software SBC platform | Cloud, virtualized enterprise, operator, service provider and large-scale SIP environments | Virtual / Private Cloud / Hosted / Hybrid | Maximum architectural flexibility and software-driven scalability |
| Sentinel Mini | Compact hardware appliance | Entry deployment for smaller sites and branch offices | SMB, remote sites, branch offices and controlled edge deployments | On-premise appliance | Compact footprint with enterprise-grade voice security |
| Sentinel 100 | Hardware appliance | Mid-range SBC for structured business deployments | SMB, branch aggregation and growing enterprise edge environments | On-premise appliance | Strong balance of performance, control and deployment simplicity |
| Sentinel 400 | Hardware appliance | Higher-capacity SBC for enterprise-scale telephony | Enterprise headquarters, multi-site environments and larger Direct Routing footprints | On-premise appliance | Higher scale for larger voice environments and site consolidation |
TMC 2026 recognition for the DGW50 virtual SBC software platform.
M5 Technologies’ 2026 TMC recognition is tied to the DGW50 virtual SBC software platform, reinforcing the strength of M5’s software-driven real-time communications and secure virtual voice infrastructure strategy.
Deployment scenarios
Built for high-value Teams voice deployments.
M5 Technologies supports organizations that need a secure, scalable and interoperable approach to Microsoft Teams voice.
ENT
Enterprise IT
Secure Direct Routing for headquarters, branches, multi-site networks and hybrid enterprise voice environments.
SP
Service Providers
Support managed Teams voice services, multi-customer SIP interconnection and provider-led voice infrastructure.
CI
Critical Infrastructure
Voice continuity, routing control and secure SIP architecture for regulated and mission-critical environments.
FAQ
Microsoft Teams Direct Routing SBC questions.
Why does Teams Direct Routing need an SBC?
An SBC secures and controls the SIP edge between Microsoft Teams and external telephony networks. It supports routing, interoperability, carrier connectivity and voice-layer protection.
Can Sentinel SBCs support carrier choice?
Yes. Sentinel SBCs help organizations bring their own SIP carrier and maintain telecom flexibility across countries, sites and service providers.
Which Sentinel model should I choose?
The right model depends on scale, deployment model, number of sites, service provider requirements and whether you prefer virtual or hardware SBC architecture.
Can Sentinel support migration from legacy voice?
Yes. Sentinel SBCs can help bridge Teams voice with existing PBXs, SIP trunks and legacy telephony infrastructure during phased migration.
Is security built into the SBC layer?
Yes. SBC security may include TLS, SRTP, SIP normalization, topology hiding, access control, session management and signaling validation.
Can M5 help design the architecture?
Yes. M5 Technologies can help evaluate model selection, voice architecture, carrier integration, Direct Routing strategy and SIP security requirements.
Talk to a Teams voice expert
Start your Microsoft Teams voice project with M5 Technologies.
Connect with our team to discuss Teams Direct Routing, SBC strategy, telecom modernization, carrier integration, multi-site voice architecture or partner opportunities.
- Evaluate the right Sentinel SBC model
- Plan migration from legacy voice to Teams
- Improve SIP security and routing control
- Design a scalable and resilient voice foundation
- Support partner and managed voice opportunities