Most of the following open source PBX vendors were on hand at Digium ... the business version of its IP-PBX software trixbox, comes in four editions: Pro Standard Edition (SE), Enteprise Edition ...

Open source PBX software that runs under Linux and other Unix variants on a variety of hardware, including x86, PowerPC, POWER and Xscale. Supporting traditional telephony (TDM) as well as voice ...

Open-Source solutions still account for a very small percentage of the IP PBX market, but Westcon expects that to be the fastest-growing part of the market in the next year or two, Pirro said.

Digium is the company behind Asterisk, the hugely popular open-source PBX software. Dobson claimed Asterisk's existing install base in the open-source arena could give Digium and Switchvox a helping ...