Attractive services will be the crucial factor in the future competition of providers in the telecommunications market. While system heterogeneity and service convergence complicate the service provisioning process, there are still no common models to support early service analysis. In this paper, we present an implementation and network platform independent model for service description. It co...

During the last 25 years, there has been a remarkable development and increase in the number of processes and devices that utilize or emit microwaves. Such devices are used in all sectors of our society for military, industrial, telecommunications, and consumer applications. Although there is information on biologic effects and potential hazard to man from exposure to microwaves, considerable c...

Information technology practitioners are required to make calls of judgement in both a technical and a professional capacity. Professional codes of conduct and codes of ethics are intended to provide guidance in making such calls of judgement. This paper looks at the Australian Computer Society code of ethics in the light of the information technology strategies employed by the Australian telec...

The growing interest in wireless systems and networks has led to the first Wireless LAN (WLAN) protocols. The Medium Access Control (MAC) layer protocols of such protocol suites are of key importance. The Radio Equipment and Systems (RES) Technical Committee of the European Telecommunications Standards Institute has proposed the High PElfonnance Radio LAN (HIPERLAN) protocol suite. In this pape...

The WLAN are coming more and more significant factor in telecommunications business. The success of WLAN hotspot networks is increasing and the new GAN/UMA solution is being launched. It is very crucial time in WLAN business and especially for mobile operators. The question is, how they are going to gain from WLAN in most competent way. In this paper is first analyzed some WLAN solutions in the...

In mobile communications networks, periodic location area update (PLAU) is utilized to detect presence of a mobile station (MS). In 3GPP Technical Specifications 23.012 and 24.008, a fixed PLAU scheme was proposed for Universal Mobile Telecommunications System (UMTS), where the interval between two PLAUs is of fixed length. We observe that MS presence can also be detected through call activitie...

Roughly 18 months after installing a unified voice messaging system, we picked it up and merged it into our pre-existing production email domain. This paper deals with both technical aspects deploying a unified messaging system, as well as the cultural shock of merging the very different operational domains of Email support with Telecommunications support into a shared support model. As an adde...

FOREWORD The ITU-T (Telecommunication Standardization Sector) is a permanent organ of the International Telecommunication Union (ITU). The ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets e...

* Acknowledgement: In 2012, an earlier version of this paper received the Best Application Paper Award at the 3rd Annual Conference of the European Decision Sciences Institute; comments received during the conference and later by the Decision Sciences review team are gratefully acknowledged. Thanks are due to Péter Csóka and Gábor Szabó for their invaluable help with the preparation of this pap...

In the last years, a variety of concepts for service integration and corresponding systems have gained momentum. On the one hand, they aim for the interworking and integration of classical telecommunications and data communications services. On the other hand, they are focusing on universal service access from a variety of end user systems. Many of the technical problems resulting from the serv...