Microsoft Teams Direct Routing
Connect Microsoft Teams to the PSTN through your own SIP trunks. Keep your existing numbers, avoid Microsoft Calling Plans, and get enterprise-grade call quality.
Request a QuoteKey Features
Native Teams Experience
Make and receive PSTN calls directly from the Teams app — no extra software needed
Keep Your Numbers
Port your existing phone numbers to use them directly in Microsoft Teams
Cost Control
Use your own SIP trunks instead of expensive Microsoft Calling Plans
Global Coverage
PSTN connectivity in 90+ countries through IVOISS SIP infrastructure
Call Quality Monitoring
Real-time dashboards and quality metrics for all Teams PSTN calls
Compliance Recording
Record Teams calls for regulatory compliance and quality assurance
How It Works
Assessment
We review your Teams environment and telephony requirements
Configuration
Our certified engineers configure Direct Routing with your IVOISS SIP trunks
Go Live
Your Teams users can make and receive PSTN calls with full support
Use Cases
Teams-First Companies
Unify all communications in Microsoft Teams. Replace your legacy phone system while keeping your numbers and call quality.
Hybrid Work
Give your team PSTN calling from anywhere — office, home, or mobile — all through the Teams app they already use.
Enterprise Migration
Migrate from legacy PBX to Teams Direct Routing in phases. We handle number porting, SBC configuration, and user migration.