Way2calls Hi-Phone products family are External USB / RS232 Plug and Play CTI (Computer Telephony Integration) Devices. Any software application or web page integrating a Hi-Phone device, can have full-featured Telephony functionality such as Make call, Answer-incoming call, Call Progress Detection, Caller ID etc The Hi-Phone products familys Integration SDK (Software Development Kit) offers software developers a variety of Simple, Fast and Easy Integration Proprietary API (Application Programming Interfaces) as well as standard API. This lets developers focus on their application instead of dealing with detailed telephony issues, using their favorite Programming Language. The SDK, Currently available for Microsoft Windows 2000/XP, supports major industry standard programming languages including C, C++, Visual Basic, .NET (VC++, VB, C#, J#, etc.), Delphi, Java and any other language which can use Win32 API or ActiveX