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file icon ECharts for SIP Servlets: a state-machine programming environment for VoIP applications (2007)
18.07.2007
A paper presented at IPTComm 2007. The paper provides a nice 10 page summary of ECharts and ECharts for SIP Servlets version 2.0.
file icon KitCAT - A Framework for Converged Application Testing
17.11.2008

There is a growing demand for IP based multimedia services that encompass usage of multiple user interfaces including web and telephony. The complexity of such converged applications require sophisticated development tools and techniques and as a result a variety of technologies and standards have been developed or are in the process of development to address the complexity of application development and deployment. For example, application servers implementing the SIP servlet standard aids the application developer with development of SIP based applications and this, in conjunction with HTTP servlet standard, aids the development of converged applications based on the HTTP and SIP protocols. While such standards and tools enable the application developer to develop and deploy complex applications, there is a growing need for tools and techniques that can help application developers to do system level functional testing of converged applications. This paper makes the following contributions - (1) describes a conceptual model for testing converged applications (2) introduces a simple programming model for test case writers to exercise and test converged applications and (3) describes our converged application testing framework KitCAT that is a concrete implementation of (1) and (2).

file icon Implementing Endpoint Services Using the SIP Servlet Standard
04.05.2009

Paper presented at the Fifth International Conference on Networking and Services (ICNS 2009).  The following is the abstract:


 Voice over IP applications at endpoint devices are typically implemented using proprietary methods and are closed and not extensible. This hinders innovation and competition. On the other hand, a number of open standards have emerged for programming network services. The SIP Servlet API is the dominant standard and is widely implemented. This paper examines the feasibility of using the SIP Servlet API for programming endpoint applications. An enterprise communication system is used as the case study.  This investigation shows that this is a promising approach with advantages such as application reuse and support for application composition. A number of issues are identified that may be addressed by enhancing the current SIP servlet container implementations.


Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

file icon KitCAT User Manual
18.11.2008
This manual guides a user through installing KitCAT and then getting started with KitCAT test cases.
file icon An Introduction to ECharts: The Concise User Manual (2008-05-20 v1.3-beta)
20.05.2008
This document provides a concise example-driven overview of the ECharts language and its features. Many simple examples are provided to familiarize the reader with the language’s textual and graphical syntax, and its semantics. The document also provides instructions for compiling, executing, debugging and generating documentation for ECharts machines.
file icon The Rise of Telecom Development Frameworks
28.10.2009
The presentation slides with speaker notes for a talk by Greg Bond and Eric Cheung at the IIT VoIP Conference and Expo October 28, 2009. Here is the talk abstract:

Last year we witnessed the maturation of an open standard API for VoIP applications with the final release of SIP Servlet API 1.1 which, in turn, triggered a proliferation of open source and commercial SIP servlet containers. At the same time, a number of open source projects provided development tools, libraries, test tools, and media servers that help the development and deployment of VoIP applications. Remarkably in less than one year, we see the emergence of a number of telecom development frameworks. These frameworks aim to make it even easier for web developers to integrate VoIP capability with web applications. These frameworks use development paradigms familiar to web developers, and incorporate a lot of the abovementioned software under-the-cover. The higher level abstraction offered by these frameworks significantly eases the development and maintenance of VoIP applications. In this talk, we will take a look at this exciting new trend. In particular, we will look at a number of open source frameworks including Converge, Mobicents' Seam Telco Framework, and SailFin CAFE.

file icon Web 2.0 Phone Home: Rapid Development of Telecom-Enabled Web Applications
08.06.2009
These are the slides from the JavaOne 2009 presentation by Greg Bond and Tom Smith where they introduced the Converge framework for rapid development of converged (telecom + web) applications. Abstract: "New open standards and open-source software let you add telecom capabilities, such as clicking a button to launch a phone call or automatically answering a call and forwarding it, to your Web applications. This session, for Web developers with no telecom background who want to add telecom capabilities to their Web applications and for telecom service developers looking to simplify development of their applications, provides a detailed look at how to rapidly develop telecom-enabled Web applications with open-source tools. It shows how the ECharts for SIP Servlets (E4SS) framework and the KitCAT test tool simplify development of telecom components based on the SIP Servlet standard. Telecom components rarely stand alone, so the session shows how easy it is to integrate telecom components with Web applications, using the Grails Web application framework as an example. Finally, it shows how the resulting converged application can be deployed on the SailFin Servlet container, a Servlet container built atop the Java™ Platform, Enterprise Edition (Java EE platform) technology-based GlassFish™ application server container."
file icon ECharts for SIP Servlets Manual (2009-04-09 v2.5-beta)
13.04.2009
This document describes the ECharts for SIP Servlets (E4SS) framework and development kit. E4SS makes use of the ECharts programming language as an alternative programming model built on the SIP Servlet API defined by the Java Community Process. Instead of overriding servlet methods and managing sessions, the programmer defines the application in terms of feature boxes, SIP message ports, and state-machine logic specified in the ECharts language. The use of ECharts to specify application logic greatly encourages component re-use and manages complexity, making it well-suited for Back-to-Back User Agent applications. Such applications can be composed with one another and with suitable proxy applications in order to provide feature-rich services while maintaining feature modularity, through use of a SIP Servlet Application Router. This document explains the E4SS framework abstractions and provides example-driven descriptions of the tools and libraries included with the E4SS development kit. The document also provides instructions on how to configure two common SIP containers, SailFin and OCCAS, for use with E4SS.
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