PBX & UC
Enterprise telephony, UC and application components.
4 solution families · 0 individual products
Solution Families
FeaturedOpenScape 4000
Enterprise IP PBX designed for 500 to 100,000 users — HA, data center and distributed branch architectures.
- Virtual deployment on EcoServer (x86) and VMware vSphere
- Hot-standby and duplex architectures targeting 99.999% availability
- Distributed branch: remote endpoints over IP Gateway
FeaturedOpenScape Business
Integrated UC platform for SMB and mid-market — voice, DECT, messaging and conferencing in a single system.
- IP, TDM and hybrid line support — phased migration to IP without losing existing infrastructure
- Built-in UC: single number, presence, IM and softphone (incl. myPortal Go mobile client)
- Integrated DECT — no extra controller, up to 8 base stations
OpenScape SBC V11
Software-based Session Border Controller. SIP trunk security, NAT traversal, DoS protection, TLS/SRTP encryption, media transcoding for OpenScape Voice and OS4000. Microsoft Teams Direct Routing certified. Physical (Lenovo SR250/SR630) and virtual (VMware, KVM, Hyper-V, ProxMox) deployment. CAPEX and OPEX (subscription) licensing.
- Securely terminate operator SIP trunks — DoS/DDoS protection, network topology hiding, SIP protocol validation
- Microsoft Teams Direct Routing certified — keep corporate numbers in Teams + bridge to OS Voice/OS4000
- Remote-worker and branch SIP access — secure registration beyond NAT, distributed SIP trunking with OpenScape Branch
OpenScape Voice V11
Native SIP-based enterprise voice platform. Scalable to 100,000 users, 99.999% availability (under 5.5 minutes downtime/year). Simplex and Duplex (active-active two-node) deployment. On-prem, Private Cloud, Public/Hosted Cloud and Hybrid Cloud support. Microsoft Teams Direct Routing, Zoom integration. Ecosystem with OpenScape 4000, OS Business and SBC.
- Native SIP B2BUA voice platform — 100,000 registered endpoints, 60,000 simultaneous SIP calls (Duplex); 5,000 users / 5,000 concurrent calls (Integrated Simplex)
- Carrier-grade 99.999% availability — active-active two-node Duplex cluster; if one node fails the partner carries 100% call load; established calls not dropped; geographically separated nodes supported
- Deployment models: Integrated Simplex (single server, 5,000 users; OSV + Media Server + UC + CMP + Deployment Service); Duplex (two nodes, 100,000 users, carrier-grade HA); Exchange (multi-vendor/TDM overlay — centralized UC management)