We believe that phones and phone systems will go away, that the browser will become the most important client on both laptops and mobile devices, and we believe in open and interoperable systems.  Our focus is on communications enablement of applications.  Our communications software is made for the cloud, fully capable of replacing an old PBX, and ideal for deployments between several hundred and several ten-thousand users, georgraphically distributed.

SIPfoundry is the home of the sipXecs open source unified communications and collaboration project. If you are looking to replace your aging (IP) PBX with an all software modern communications solution that scales to mid-size and large enterprise and can be deployed in the cloud, look no further.  A fast growing list of large enterprise use our solution as an alternative to expensive systems from vendors such as Avaya, Cisco, and Microsoft.  If you are an organization with many hundred or even thousands of branch offices distributed geographically, we can help centralize your communcations infrastructure into a data center with geographic redundancy, seamless failover, and a robust and easy to manage system that scales to your needs.

We are a community of experts dedicated to the development of SIP and XMPP based communications solutions. Founded in 2004 as an independent 501(3)c not-for-profit corporation based in Massachusetts, SIPfoundry is governed by an independent board of directors. SIPfoundry is open an invites all interested parties to cooperate and collaborate.  While the sipXecs project is the largest active project at SIPfoundry, we are open to making available our infrastructure to other interested projects. sipXes is developed by eZuce and a commercial enterprise edition of the sipXecs solution is available from eZuce with full support, software maintenance, training, indemnification, and other services.