How do open source business models work in the IP PBX market?
There are two primary open source business models in the IP PBX market. First, Fonality and Digium follow the appliance model by shipping the Asterisk IP PBX on a pre-configured server with some enhancements. These companies also provide support and professional services for the product. The primary value proposition is low cost, as well as ease of set-up and maintenance. Second, Pingtel provides professional services and support as a subscription service for their SIPfoundry based products.
