jtapi-tutorial

An Introduction to theJava Telephony API (JTAPI)Marcel GrafMarcel Graf/Zurich/IBM@IBMCHIBM Research DivisionZurich Research LabMarch 2000/g/ct/website/internal-2.0/src/jtapi-tutorial.fm 1 / 22last modified April 3, 2000 2:38 pm22 pages1 Java Telephony API (JTAPI)1.1 ScopeThe Java Telephony API (JTAPI) is an object-orientedapplication programming interface for Java-based telephonyapplications. Similar APIs for other platforms are the Tele-phony API (TAPI) for the Microsoft Windows platform and theTSAPI for the Novell Netware platform.1.2 JTAPI basics1.2.1 First party vs. third party call controlThe purpose of JTAPI is to serve as an interface between aJava application and a telephone system. The point where thisinterface is located determines the degree of control an applica-tion has. In a first-party call control scenario the interface islocated at a terminal. The application has the same degree ofcontrol a normal telephone user has. In a third-party call controlscenario the interface is located inside the telephone system.Depending on the telephone system this internal access pro-vides the application usually with more control capabilities thana first-party call control scenario.appl.JTAPIfirst-party call controlappl.JTAPIthird-party call controlFigure 1: First-party and third-party call control in a Private Tele-phone Network with a PBXA design goal of JTAPI has been to cover both scenarios.As a consequence JTAPI provides a model ...