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Since 1991, our company's mission has been creating the most scalable, reliable, and feature-rich solutions for Internet Communications based on open standards.

CommuniGate Systems' goal is to consolidate all forms of Internet Communications into one address space, making the single address for email, IM, VoIP and video calling, more productive, portable, and independent of tariffs and tolls of closed network topologies. We see all Internet Communications becoming accessible to multiple media types through one account, providing true portability of an "address" no matter where you access the Internet. The CommuniGate "SIPify your life" strategy and programs such as Trade In & Trade Up will build and enable global change, one address, one network, always connected, and always portable.

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Headquartered in Mill Valley, California, CommuniGate Systems has over 12,000 customers worldwide, ranging from the largest broadband, wireless and wire line service providers, to enterprises of all sizes. Over 130 million end users including 47 million voice customers rely upon CommuniGate Systems products for their voice and data communication needs.

Subsidaries and regional CommuniGate Systems offices are located in Latin America, Germany, Russia, Singapore and Japan (including Japan R&D center).

The company's flagship product - the CommuniGate Pro communication server has become the acknowledged leader in scalable carrier grade technology. Its' unsurpassed scalability and feature set have won more industry awards than any other communications product on the market.

Today, CommuniGate Systems delivers applications based on the unique field-proven Dynamic Cluster platform for carriers and mobile operators as they build out their Converged Communications strategy. CommuniGate Pro provides the only fully integrated, carrier-class solution for Fixed Mobile Convergence, IP Centrex, hosted PBX, and Session Border Controllers.

CommuniGate Systems stays at the forefront of Internet Communications development, ensuring that our thinking is always one step ahead of the market requirements.

Our Internet Communications Solutions Offer:


  • Standards-based technologies for maximum flexibility
  • Maximum scalability and high performance
  • Session Border Controller with IPv6 support
  • Robust and open development environment with rich API's including XML
  • Ease of administration and granular delegation
  • Support for UNIX, Linux, Windows, BSD and OSX
  • Active-Active Application level clustering
  • PBX, Voicemail, ACD, Email and IM applications
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