Sipcat software offers you the complete flexibility of installing a Voice over IP PBX on your own hardware. Our software application is available as a download and contains a complete operating system, IP telephony switch and management interface. Optionally you can install PCI expansion cards in your system to connect analog PSTN or digital ISDN lines.
We provide a free license for up to 4 users. This is a completely functional system with no expiration limit. If you like the product and want to add additional users, you can easily buy a software license online or via one of our qualified partners. 


  • Use your own hardware and existing maintenance contracts.
  • Complete control, using the web based interface.
  • Try before you buy with our software download.
  • Easily expandable using standard PCI expansion cards.
  • Installed in minutes.