Unified Communications
Bring calls, collaboration and messaging together in one cloud platform — wherever your teams work.
One platform, everywhere
Communications built for the way you work now.
Hybrid teams need to reach each other and your customers from anywhere, on any device. Our cloud communications bring calling, collaboration and messaging into a single platform — with deep Microsoft integration and the reliability of our own network behind every call.
VoiceLogic
SIP Trunks
Microsoft Teams Phone
Microsoft Direct Routing
Why businesses choose Stream for communications
One platform, everywhere
Calls, chat and meetings unified across desk, mobile and desktop.Seamless Microsoft integration
Make Teams your phone system with enterprise-grade calling built in.Scales with your team
Add users and sites in minutes — you only pay for what you use.99.99%
Platform uptime
24/7
UK-based support
HD
Voice quality
5 min
Average setup per user
Compare your options
Which communications product is right for you?
| Product | Best for | Hardware needed | Microsoft Teams integration |
|---|---|---|---|
| VoiceLogic | A complete cloud calling & collaboration platform | No | Optional |
| SIP Trunks | Modernising an existing on-site phone system | Existing PBX | No |
| Microsoft Teams Phone | Teams-first organisations wanting native calling | No | Native |
| Microsoft Direct Routing | Connecting Teams to the phone network via our carrier network | No | Native |
FAQs
Unified Communications, answered
What is unified communications?
Unified communications brings calling, messaging, video meetings and collaboration together in one platform, so your team can work from any device without switching between systems.
Do I need new hardware to switch?
No — VoiceLogic and Microsoft Teams Phone both run in the cloud with no on-premise hardware. SIP Trunks connect to your existing phone system, letting you modernise gradually.
Can I keep my existing phone numbers?
Yes, we manage number porting as part of onboarding, so your business keeps its existing numbers with no disruption to callers.
How does this integrate with Microsoft Teams?
Microsoft Teams Phone turns Teams into your full business phone system, and Direct Routing connects Teams to the public phone network through our carrier network — both give you enterprise calling without leaving Teams.
What happens if my internet connection drops?
Calls can automatically fail over to mobile or a backup connection, and pairing your platform with our resilient connectivity keeps you reachable even if your primary line is disrupted.
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