This is the TSAPI# project ("tsapi") This project was registered on SourceForge.net on Jun 4, 2007, and is described by the project team as follows: This project provides a C# wrapper for the AT&T/Lucent/Novell/Avaya TSAPI library. This library facilitates computer telephony integration with a TSAPI-compliant PBX system The initial release of TSAPI# is available for review. This offers a TSAPI library wrapped in a C# class. There is also a sample C# application included to test out some of the features. So far only a handful of TSAPI functions are included, with more to come. The project site also contains downloads for TSAPI client drivers, a CSTA simulator, and a telephony server.