Abstract-Band - Fakultät für Informatik, TU Wien - Technische ...

Institut für Computertechnik
Michael Pickelbauer
Voice over IP Integration in Service Component Architecture
Studium: Masterstudium Software Engineering & Internet Computing
Betreuer: O.Univ.Prof. Dr. Dietmar Dietrich
The paradigm of Service-oriented Architecture (SOA) has gained ever
increasing popularity due to its interoperability and extensibility. Similarly,
Voice over IP (VoIP) has established for the transfer of media over computer
networks, like the Internet. The present thesis examines the integration of
information from Voice over IP calls into a system based on SOA as well as
the manipulation of these call information. The aim is to unveil whether
services can access the call information in the same way as they would access
information from commonplace services. The focus of this work is to create a
lightweight system. Therefore, Service Component Architecture (SCA) is
chosen as an implementation of SOA. On the Voice over IP side the widely
used Session Initiation Protocol (SIP) is chosen as the signaling protocol to
interact with SCA. The interaction is based on a Back-To-Back User Agent as
this type of SIP server is most flexible and offers numerous interaction
opportunities. Various approaches regarding how the information of a call
can be inserted into SCA are developed and the most promising option is
implemented as a prototype. The prototype follows the SIP standard and is
implemented as a service in SCA. With the prototype, sample applications are
built which show the expected improvement in development speed and reusability
of the created services. Compared to implementations not using
SCA, the prototype reveals drawbacks in performance. The achieved
performance, however, is already sufficient to fulfill the requirements.
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