Connect B4B Telecoms to Microsoft Teams in minutes
Keep your existing B4B Telecoms phone system with all
Keep your existing B4B Telecoms phone system with all
the features you rely on
Join our partner network to drive your business forward
Partner with us
Quick and simple deployment
One-click deployment, no additional hardware, no need for specialist skills. 
No disruption or risk
Works with any phone system, PBX or SIP Trunk Provider, no need to change numbers, phone system, PBX, SIP trunk provider or carrier. 
Flexible user management
Per user, per month subscription provisioning and billing with user-by-user rollout. 
A truly global platform
Operating in Microsoft’s Azure cloud and served from super-clusters in four continents delivering an enterprise-grade service. 
Call2Teams® is channel-only
Driving your business forward
UCaaS service providers
OEM or white label within an existing proposition for accelerated go-to-market.
Partner with usVoice distributors & value added resellers
Generate monthly recurring revenues with a solution that’s easy to provision, configure and support.
Partner with usIT distributors & resellers, MSPs, systems integrators
Cloud-native, enterprise- grade solution that takes the pain out of voice-enabling Microsoft Teams.
Partner with usBusinesses
Discover our partners, from large organisations to small local service providers, to the do-it-yourself options via Microsoft’s Appsource.
Find a partner