Asterisk Disrupts a $7 Billion Dollar Business

  Phone switch software Asterisk has gone up against such industry heavy weights as CISCO and Nortel in the seven billion dollar a year PBX corporate telecom systems. The PBX systems usually higher switchboards, voice mail, and other key phone functions for medium to large businesses.
  The entire industry was turned upside down by 23 year old Mark Spencer who coded the Asterisk PBX software for his own company Digium. Where the big companies used to snicker at his efforts they are not laughing any more. With Asterisk's open source model the platform has rapidly expanded and had many application built around the service. That has the corporate companies sweating as their billion dollar business evaporates before their eyes.

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