Key Takeaways:
- Simplified Telephony for Teams: Call2Teams enables organisations to integrate calling into Microsoft Teams while retaining their existing PBX or SIP trunks, avoiding disruptive migrations.
- Cost-Effective Alternative: Call2Teams and Call2Teams Go eliminate the need for expensive Microsoft E5 licences or Phone System plans, offering affordable solutions.
- Rapid Deployment: Both solutions are cloud-native, allowing businesses to enable Teams calling within minutes.
- Flexible and Scalable: Call2Teams caters to diverse needs, from SMEs looking to reduce costs to larger organisations seeking to modernise their communication stack.
- Proven Success: Call2Teams boasts more than 1.5m users worldwide, delivering cost savings, reliability, and a unified communication experience.
Microsoft Teams Is Everywhere — But Telephony Is Still a Challenge
Microsoft Teams has become an indispensable tool for workplace collaboration, empowering organisations to connect through messaging, file sharing, and virtual meetings. Yet, despite its widespread adoption, telephony integration remains a significant hurdle.
Traditional solutions, such as Microsoft’s Phone System and Calling Plans, often require costly licences, complex infrastructure upgrades, and disruptive migrations, making them impractical for many businesses. This has left organisations searching for a more accessible and cost-effective way to unify their communication systems.
This is where Call2Teams and Call2Teams Go step in, offering innovative, flexible solutions to bring telephony into Microsoft Teams. Whether you’re a business with an established PBX system or a smaller organisation looking for a cloud-first approach, these tools provide a seamless and cost-effective way to modernise communication.
What Is Call2Teams? Integrate Telephony with Microsoft Teams
Call2Teams is a middleware platform that transforms Microsoft Teams into a fully functional business phone system without requiring a switch in providers or infrastructure overhauls.
How It Works:
Call2Teams connects Microsoft Teams directly to:
- SIP trunks (voice carrier services)
- On-premise or hosted PBX systems
- Unified Communications as a Service (UCaaS) platforms
This integration enables users to make and receive external calls directly from the Teams app — on desktop or mobile — using their existing business numbers and telephony systems.
What Is Call2Teams Go?
Call2Teams Go is an add-on to Call2Teams that delivers a dialer application inside MS Teams to activate external calling capabilities.
Key Differences Between Call2Teams and Call2Teams Go
| Feature | Call2Teams | Call2Teams Go |
|---|---|---|
| Target Audience | Businesses with existing telephony infrastructure | Small to mid-sized businesses with no PBX systems |
| Connection Type | Integrates with SIP trunks, PBX, or UCaaS platforms | Cloud-first; no telephony hardware required |
| Deployment Time | Quick but may involve connecting existing systems | Instant setup with Teams credentials |
| Cost Structure | Cost-effective for businesses with existing systems | Budget-friendly for organisations starting fresh |
| Use Case Example | SMEs or enterprises modernising their PBX systems | Start-ups or hybrid teams needing quick solutions |
Who Benefits from These Solutions?
- Businesses with an existing PBX that can keep their existing infrastructure while enabling Teams calling.
- Larger organisations and telecom providers can scale telephony across multiple users and locations without disrupting their systems.
- Teams with existing telephony needs can combine calling with collaboration tools for seamless communication.
- Avoid the high costs of Microsoft’s E5 licences and Phone System plans.
Why Choose Call2Teams and Call2Teams Go?
Both solutions offer distinct advantages over traditional Microsoft voice options, allowing businesses to modernise their communication systems affordably and efficiently.
| Feature | Microsoft Phone System | Call2Teams | Call2Teams Go |
|---|---|---|---|
| Requires Microsoft E5 or Phone System Licence | ✅ | ✅ | ❌ |
| Works with Existing PBX’s | ❌ | ✅ | ✅ |
| No extra PBX or SIP Trunk application/migration | ❌ | ✅ | ✅ |
| Cloud-Native Deployment | ✅ | ✅ | ✅ |
| Quick to Deploy | ❌ | ✅ | ✅ |
| Ideal for Smaller Businesses | ❌ | ❌ | ✅ |
Whether you’re a business with significant telephony investments or a start-up looking for a simple, cost-effective solution, Call2Teams and Call2Teams Go offer the perfect way to integrate voice calling into Microsoft Teams.
From SMEs to enterprises, and from hybrid teams to resellers, these solutions deliver the flexibility, scalability, and cost-efficiency needed to thrive.
