NetworkWorld, 15 May 2006
VoIP has finally arrived as a mainstream application. IP PBX equipment sales topped $1 billion in 2005, for the first time outpacing traditional TDM PBXs, according to Dell' Oro Group.
In fact, analysts predict that IP PBXs will account for more than 90% of the market by 2009. Before you deploy VoIP, however, you need to be aware of the security risks and the countermeasures that you can take.