Hybrid Unified Communications Platforms

Unify OpenScape 4000

Choose to be competitive without turning the world over and starting again. Sometimes evolution fits better than revolution.

The sweet spot of unified communications


Hybrid TDM/IP-PBX for Enterprise Voice with an extensive Enterprise feature set for traditional to next generation communication


Industry leader in Wireless DECT deployments – Cordless Enterprise

Technical support

Support for native SIP Subscribers


Integrated into Unify OpenScape Management – zero touch maintenance

make larger

Single system scales up to 12,000 users


Active-Standby dual node architecture, no calls lost on switchover


Supports high analog and TDM requirements and for Unify OpenScape 4000 Branch as hybrid side


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

Bulletproof infrastructure

OpenScape 4000

As part of the Unify OpenScape Enterprise portfolio, Unify OpenScape 4000 bridges the gap from legacy digital communications to IP-based unified communications. Both reside side-by-side in the same enterprise, on the same platform. You leverage and enhance your existing communications by introducing powerful state-of-the-art UC capabilities. But where needed, as needed.

Designed for enterprises from 300 to 12,000 users, Unify OpenScape 4000 supports the full range of Unify OpenScape UC for high-demand users, while allowing you to keep moderate-demand desks in digital format.

While mirroring the feature set and many of the same capabilities of our flagship Unify OpenScape solution, Unify OpenScape 4000 isn’t the new kid on the block—it’s been around and will stay around.

Flexible licensing means your users can move from one technology to the other as your needs demand. For data center deployments, it runs on industry-standard servers or as a traditional PBX platform. You need your communications ecosystem to do some heavy lifting? This just works.

What our clients say about us

First-class communication for the 5-Star Superior Schloss Fuschl, A Luxury Collection Resort & Spa with a flexible and high-availability complete solution

“What we particularly like is that we can continue to use our existing room phones with OpenScape 4000 and that we didn’t have to purchase new devices.”

Andreas Zybell, Hotel Manager

View success story

Schloss Fuschl

Related resources



Unify OpenScape 4000 Portfolio Journey

You’ve seen all the changes in communications over the last decade. One solution is there every step of the way, adapting, changing, and evolving. Making sure your business is more efficient, more productive.



Transforming your teams and your business

Your communications world is changing. Teams are more connected, more mobile and more virtual.



Unify OpenScape 4000

As a convergent communication solution, Unify OpenScape 4000 V10 provides business process and workflow integration, high availability, security paired with powerful performance and cost-effective choices for any business.


Clinique Saint-Jean Brussels

Case Study

Clinique Saint-Jean

New contact center technology helps the Clinique Saint-Jean to dramatically improve its customer service.

Interested in our Hybrid Unified Communications solutions?

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