Sökning: "mobile telephony"
Visar resultat 1 - 5 av 23 avhandlingar innehållade orden mobile telephony.
Sammanfattning : With the introduction of IP based telephony services, the Internet has started to challenge the traditional PSTN networks as an infrastructure for providing real-time interactive services. This upcoming paradigm shift is not only driven by the desire to provide cost efficient solutions, but by basing the communication on IP we expect that the end-users will experience a greater set of attractive services over a single connection compared to what is provided by a PSTN today. LÄS MER
2. Mobile Supported e-Government Systems : Analysis of the Education Management Information System (EMIS) in Tanzania
Sammanfattning : e-Government systems are considered by both governments and international organisations to improve administration and management. In Tanzania, an e-government system for education administration, EMIS, is partly implemented but shows several limitations. LÄS MER
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Sammanfattning : The purpose of this thesis is to contribute to the understanding of how techno-economic systems emerge and evolve and how such processes can be analyzed. To these ends, the history of mobile communications is investigated, seen as a complex techno-economic system with two rapidly evolving and interacting subsystems - mobile telephony and mobile data communications - which are described, dissected and compared in case studies. LÄS MER
Sammanfattning : Internet Telephony defined as real time voice or multimediacommunications over packet switched networks dates back to theearly days of the Internet. ARPA's Network SecureCommunications project had implemented, as early as December1973, an infrastructure for local and transnet real time voicecommunication. Two main sets of standards have emerged: H. LÄS MER