List of websites and documentation containing information about telephony programming (CTI, TAPI...). I grew interested in this field as a consequence of having to use some buggy applications at work. It was such a nuisance to work with them that I felt the need to learn more about the field so I could somehow debug them a little bit.



All the information you needeed to do and program telephony in Linux: articles, books, mailing lists, drivers, protocols, hardware, etc.
The Java Telephony API, including documentation, code example, history, etc. Nice place to obtain all the information you need in order to write that little Java telephony app.
The telecommunications application server of the GNU project. It allows for a free and opensource development and deployment of telephony solutions.
Written by S.S. Ahmed, this is a nice tutorial to introduce you to the Microsoft TAPI library. It includes some code example.
Written by Ranju, this is another nice introduction to programming the Windows TAPI. The author uses Visual Basic though.