Leading provider of SIP based Private Branch Exchange (PBX) communication systems

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About Us

pbxnsip is a leading provider of SIP-based Private Branch Exchange (PBX) communication systems. The Session Initiation Protocol (SIP) is used to talk to attached devices like telephones, PSTN gateways or SIP service providers. SIP is HTTP for voice. The pbxnsip PBX is used to put the components from different vendors together to form a complete communication system. Customers benefit from a modern feature set like mobility support, computer telephony integration and vendor independence. Customers may run the PBX on Microsoft Windows, Mac OS, and Linux-based servers as well as in embedded appliances like our CS410. The pbxnsip solution is ideal for small to medium size businesses, enterprises, hosted environments, call centers, and the hospitality industry. pbxnsip was incorporated in 2005 and is located in Andover, Massachusetts with sales offices in the UK and Mexico. pbxnsip has distributors and resellers worldwide.

. . . learn more about us, a pbxnsip Overview video.