Use Microsoft Teams as Your Office Phone
Keep the Teams experience your staff already knows—then add business-grade calling.
With SolSwitch Direct Routing, users place and receive external calls inside Teams, while SolSwitch handles call flow, features, and reliability.
One Place to Call
Place inbound and outbound PSTN calls from inside Teams - desktop or mobile.
PBX-Grade Features
Auto-attendant, queues, time rules, voicemail-to-email, and more.
Local Support
Sunwire helps design, deploy, and support your call flows end-to-end.
Keep Your Numbers and Identity
Use your main business numbers and extensions - without giving everyone a DID.
Better Call Handling
Auto-attendants, queues, schedules, routing rules, overflow, after-hours.
Consistent Experience
Users call from Teams; administrators manage the phone system in SolSwitch.
Designed and Supported by Sunwire
Architecture, cutover planning, testing, training, and support.
Why Teams + SolSwitch?
Teams is where conversations already happen. SolSwitch adds the telephony layer—call routing, system features, reporting, and real support - so Teams can function like a true business phone system.
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How Direct Routing Works
Direct Routing connects Microsoft Teams Phone to PSTN connectivity through a supported Session Border Controller (SBC). SolSwitch is the platform that routes calls, applies your business rules, and integrates with your telephony services. -
Users call out from MS Teams on Desktop or mobile.
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Calls route via Direct Routing through the SBC / trunk path.
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SolSwitch controls call flow: Auto-attendants (IVRs), queues, time rules, voicemail, AI tools, etc.
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Sunwire supports it from design and deployment to testing, and ongoing changes.
- Discovery & design (call flows, queues, auto-attendants, schedules)
- Configuration + validation testing
- Number porting / routing coordination (where applicable)
- User enablement + go-live support
- Ongoing changes and optimization
What You'll Need:
- Microsoft Teams Phone licensing for users who will place/receive PSTN calls.
- Direct Routing connectivity (via a supported SBC path).
- Your PSTN plan (numbers/trunks) and desired call flows.
- Implementation window for testing + cutover (we’ll help plan it).
