The TwinStar Plus CXTS4000 is comprised of two Blue Steel 4000 (CXT4000) module-less VoIP servers. This robust configuration is a heavy-duty, stand-alone, pre-configured, out-of-the-box IP-PBX featuring Xorcom’s CompletePBX distribution, hot swappable disk drives, and two built-in redundant power supplies supporting up to four Astribank units. The CXTS4000 features an Intel Xeon Processor E3-1225V2 8M cache (3.20GHz), hot swappable disk drives, and two built-in redundant power supplies supporting up to four Astribank units.

Support for digital PRI and BRI ISDN and PSTN/analog phone ports can be provided by connecting external Astribank units via the USB2 ports to support up to 960 PSTN/analog phones ports, up to 24 E1 R2 / T1 PRI ports, up to 1500 users and up to 880 concurrent calls.

A multi-function LCD (Liquid Crystal Display) on the Blue Steel CXTS4000 allows the system administrator to perform several of the most common functions directly on the front panel of the IP-PBX without having to attach a keyboard and monitor. The touch panel uses a text-based menu tree to facilitate monitoring, maintenance and troubleshooting of the entire telephony system.