IP-based Unified Communications Platforms

Unify OpenScape Voice

We’ve learned to communicate in a lot of ways, but when it really counts, we use the tool that matters most  — our voice.

Make your conversations vibrant — down the hall or around the world

Next Gen

Next Gen (100% SIP-based) Enterprise VoIP solution


Carrier Grade Reliability (5 9s) Active – Active Server architecture

Secure Cloud

Carrier Grade Routing and Translation for cloud / overlay deployments (IP-Least Cost Routing)


Fits into virtualized architecture (VMware), delivered as a vApp

make larger

Industry leading scalability up to 100,000 users on a system


100% call failover support – no lost calls on a single node failure

Room based video collaboration

Multi-tenant support

Success Stories

Licensing options – Permanent (CAPEX), Subscription (OPEX)

Speaking with a unified voice

As part of the Unify OpenScape Enterprise portfolio, Unify OpenScape Voice enables your enterprise to talk—with each other, with your customers, with all your stakeholders, with immediacy and richness.

As a stand-alone voice application or integrated with other unified communications applications, Unify OpenScape Voice combines carrier-grade reliability, security, massive scalability (up to 100,000 users per node) and flexible on-premise or cloud deployment with the features your enterprise needs.

We seamlessly synchronize voice with mobility, video and web conferencing, chat, messaging, presence, one-number service and more. Embed voice into your business applications. You can even unify your in-place multi-vendor voice network without ripping and replacing. All with one elegant framework. Now that’s worth talking about.

What our clients say about us

Otto Group Portfolio of companies exploits benefits of communication services from the private cloud

“Our old telephone system was no longer suitable for today’s business processes. What we needed was a seamless communication solution that would enable employees to work from anywhere.”

Lutz Bandholt, telecommunications, Engineer at the Otto Group

View success story

Otto Group

Related resources

OpenScape Enterprise


Unify OpenScape Enterprise Portfolio Overview

Discover how to unleash the potential of your virtual teams.

OpenScape Voice


Your Voice is Critical

Unify OpenScape Enterprise Voice Solutions gives power to voice.



Unify OpenScape Voice

Start with the right platform. The leading software-based voice communications system

Interested in our IP-based Unified Communications solutions?

We have a strong network of partners with varying specialties and locations near you.