VoIP-PBX Failover System CTS3000

up to 1000 users

IP-PBX (Private Branch Exchange) failover system TwinStar Plus CTS3000, up to 1000 users

The TwinStar Plus CTS3000 is comprised of two CXE3000 module-less VoIP servers. CTS3000 is a stand-alone, pre-configured, out-of-the-box IP-PBX failover solution featuring Xorcom’s CompletePBX distribution in a two 19″ 2U chassis. Digital PRI and BRI ISDN and PSTN/analog phone ports can be supported by connecting external Astribank units via the USB2 ports, for a total of up to 672 PSTN / analog phones ports, up to 1000 users and up to 550 concurrent calls (SIP only); 480 for PRI / FXS.

The robust CTS3000 comes standard with a RAID1 Support, redundant fans for cooling, internal backup and restore, front panel USB access, and two Ethernet ports to allow separation of IP voice and data traffic for improved voice quality and increased throughput.

A multi-function LCD (Liquid Crystal Display) on the CTS3000 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.

Also available with the CTS3000 is the Rapid Recovery – Backup Utility, provided on Disk-on-Key. CTS3000 configurations with an FXS module support Rapid PA – Public Address to provide public address functionality to Asterisk installations.

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Technical specifications


  • Up to 1000 users
  • Various combinations of FXS, FXO, BRI ISDN and PRI/CAS/R2 ports
  • Supports SIP and IAX2 phones and trunks
  • Up to 8 BRI ISDN ports
  • Up to 4 PRI (E1/T1), T1 CAS, or R2 (E1) ports
  • Up to 20 external Astribank USB channel banks
  • Concurrent calls: Up to 550 (SIP only); 480 (PRI + FXS)
  • Easy-to-use Web interface for Asterisk and network setup


  • Processor: Intel i3-8100T
  • RAM: 4 GB
  • Mass storage: 2 x 250 GB SSD/ 500 GB SSD
  • RAID1: Dual hard drive for increased system reliability
  • Fan: 3 redundant fans
  • Echo Cancellation Module: Voice enhancement & echo cancellation (optional)
  • USB: 4


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