Modem Master ActiveX is a nice and easy to use activeX that does all the complex work when reading and writing to the modem. Source code is available upon request. Developer can read and write any strings to modem, execume modem commands, and receive a number of different notifications about modem state changes. Even beginner may start using this component in a few minutes. Detailed documentation as well as Visual Basic, MS Visual C++, and Delphi samples are is included in a package.