These tools were originally marketed and sold by JulMar Technology, but when we dropped out of the development market for TAPI we released all of them into the public domain. Feel free to download them and use them - but recognize there is no support or warranty supplied.
TSP++ 3.053
TAPI Service Provider SDK (3.053)
This is a Visual C++ (VS.NET 2005) framework library for building TAPI Service Providers (TSPs). It has full support for TAPI up to version 3.1 and includes support for agents, queues, shadow calls, and predictive dialing. It was built with Visual Studio 2005 against TAPI 2.0/3.1.
The installer will prompt for a key to install it -- J35M-3KXo-q60T
TSP++ 2.0
TAPI Service Provider SDK (2.0)
The TSP++ SDK has been used by some of the largest companies in the world to create TAPI-compliant service providers for their hardware. Version 2.0 is an older copy of the source code which was intended for small numbers of lines. It was built using Visual Studio 6.0 against TAPI 2.0.
TAPI Debug Level
This is a tool for changing the debug level of TSPs built with JulMar's TSP++ toolkit but can adjust the debug level of the TAPI system components as well.