The booklet takes you through the process of developing a simple telephony application made using the stuffs mentioned above. Along the way (I hope) you'll develop a firm basic understanding of those stuffs, and be ready for your further adventure in telecommunication application development.
Download the booklet (PDF, 5 Mb).
Download the source code of the application explained in the booklet (TarGz, 1.5 Mb).
Booklet: telephony application development using Asterisk, Java, and SIP
Booklet: Telephony application development with Asterisk, Java, and SIP