In this Clear Choice test of four open source-based IP PBX systems, we found products that are well suited for the low end — defined in this testing as supporting as many as 250 concurrent users.

In a move that might send shivers down the spines of mainstream IP PBX vendors like Avaya, Cisco and ShoreTel, Michigan CAT has deployed an open source Asterisk IP PBX to handle its phone calls and ...

Dina Biagio of Spoor & Fisher explores the impact of open-source software on technology development and highlights the tension between collaborative innovation and traditional intellectual property ...