Vietnam enterprise telephony market CY 2009 study offers an analysis of the regions enterprise telephony market for CY 2009. It analyses the market trends, vendor market performance, the vertical and horizontal market splits, go-to-market strategies and major public customer wins. The enterprise telephony market is segmented into PBX, KTS, WPBX and the IP-PBX markets. This research is based on Frost & Sullivan's proprietary T.E.A.M. methodology, ensures that clients have complete "360 Degree Perspective" from which to drive decision-making. Technical, Econometric, Application, and Market information ensures that clients have a comprehensive view of industries, markets and technology.