Developer "Rack Soft srl"

4PSA is a registered trademark of Rack-Soft. Rack-Soft was founded in 2001 to deliver customized software solutions to the server market. Rack-Soft launched the first product, 4PSA Notifications in 2002. In 2003 the company introduced seven other software packages and developed over fifty custom software applications for leading hosting providers and companies in US, Europe, Asia, and Australia.
The leading hosted PBX software In 2006 Rack-Soft introduced the first software solution for hosting service providers and Internet Service Providers. As of 2007, 4PSA VoipNow is the leading hosted PBX software for Hosting Service Providers, Internet Service Providers and enterprise.