This document reflects the PP layer as it exist today. It is our intention to add updates as more functionality is created.
Software implementation of PP layer adhere to the "Open C Environment" (OCE). Realizing efficient real open system.
Implementors, system architects, system programmers, application programmers and any one who is interested in developing a Interactive Voice Response System that is hardware independent can benefit from reading this book.
Example of a upper layer over PP is recordex and V-COMPILER. "VoRDE" integrates the built-in applications, the "V-COMPILER", and the voice response system management capabilities into a single Voice Response Program.
Example of a lower layer is D40-LIB. A "C" library that makes use of the driver-provided Services conveniently availabe to "C"application programs.