ToneEncoder is the high performance, professional, stable and very easy to used ActiveX Control to encode variant of tone signals such as DTMF, Caller ID, Users define tones, TTY baudot and so on. ToneEncoder ActiveX Control is not an end-user application program but a programming component for beginning to advanced developers. Written in C++ using ATL Active Template Library, PhoneTone Decoder is lightweight with no dependencies and can be used on Windows 98, Windows ME, Windows NT 4, Windows 2000 and Windows XP. Also it works with most Windows software development environments. With development tools like Visual C#, Visual Basic.NET, Visual Basic, Visual foxpro, Delphi, C++ Builder, Access ,Visual C++ and others that support ActiveX controls.