Where can I learn more about Java Telephony interface (JTAPI)?

Here are some useful links for obtaining more information on JTAPI:

JTAPI home page@Sun
http://java.sun.com/products/jtapi/

Archives of JTAPI-INTEREST@JAVA.SUN.COM
http://archives.java.sun.com/archives/jtapi-interest.html

JTAPI FAQ
http://web3.javasoft.com/products/jtapi/faq.html

How Java will bring together the Internet and telephony
http://www.javaworld.com/javaworld/jw-02-1997/jw-02-api.telephony.html

Book: Essential JTAPI
http://www.phptr.com/ptrbooks/ptr_013080360X.html