System multi-line to control and execution of survey by telephone

Abstract

The Multiline System for monitoring and enforcement of Surveys via telephone, was developed in the programming language Microsoft Visual C++

6.0 and in the development tool of applications of database Clarion 6.1, under the environment of Windows XP operating system, using the technique of multitasking programming based on threads. The architecture system hardware, is the model of direct access First-Party, this means that the PC is connected to a telephone device, a phone card Dialogic D/4PCI in our case, and that it, in turn, contains internally audio devices input/output, connected to some channels that come from a public lines.. The functions TAPI-DIALOGIC allow to control the telephone devices of the Card Dialogic D/4PCI on transmitting information, while the last two control devices audio input/output, necessary to pass. The system can control and run at the same time or simultaneously several surveys of different sizes, based on the number of questions, through access to a database of surveys. The System expected calls, which, to occur the event ring of telephone, answers automatically, initiating a interaction of dialog with the person who calls, bringing a series of questions, through voice messages previously recorded, and storing automatically the responses of the person surveyed, as files of voice messages or tones multi-frequencies, directly in the database.