IP-PBX (Private Branch Exchange) Failover System CTS2000

up to 200 users

IP-PBX (Private Branch Exchange) failover system TwinStar Plus CTS2000, up to 200 users

The TwinStar Plus CTS2000 is comprised of two CXE2000 module-less VoIP servers. CTS2000 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 160 PSTN / Analog phones ports, up to 200 users and up to 85 concurrent calls (SIP only); 45 for PRI / FXS.

The robust CTS2000 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 CTS2000 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 CTS2000 is the Rapid Recovery – Backup Utility, provided on Disk-on-Key. CTS2000 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 200 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
  • Single ISDN PRI (E1/T1) T1 CAS, or E1 R2 port
  • Up to 4 external Astribank USB channel banks
  • Concurrent calls: Up to 85 (SIP only); up to 45 (PRI + FXS)
  • Easy-to-use Web interface for Asterisk and network setup


  • Processor: Intel i3 8100T
  • RAM: 2 GB
  • Storage: 2 x 250 GB SSD/ 500 GB SSD
  • Echo Cancellation module: Voice enhancement & echo cancellation (optional)
  • USB: 4 external USB 2.0


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