3UCS VoIP ocx安装程序及二次开发C++源码，主要用作呼叫中心业务软件开发，提供了VoIP软电话功能、呼叫中心业务方法如监听、插话、录音等等 -3UCS VoIP ocx installation procedures and the secondary development of C++ source code, mainly for software development, call center operations, providing a VoIP soft-pho