In order to understand how IP PBX software works for the IT industry one must understand how the industry itself works. A typical IT Industry Scenario The buzzwords in IT are offshore and outsource. You

目前主流电话系统从功能到使用界面还停留在几十年前的设计上；callpass试图重新设计了企业的电话系统，去掉很多不必要也很少用的功能，甚至去掉了电话线和电话机，直接在手机上或者电脑上使用电话。