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Real estate investors nowadays request more and more high-performance buildings to be competitive on the market and to deliver its users the highest convenience. To present the convergence of telephony (SIP VoIP), Internet services via WLAN and digital TV this paper shows the interaction of state of the art last mile access technologies (WLAN, FSO, fiber optics) in combination with high (HDTV) and...
Migrating to signaling system 7 over IP through Sigtran deployment is a cost-effective solution to replace traditional low speed SS7 signaling links with highly efficient IP connectivity. This paper deals with performance evaluation of the stream control transmission protocol which is the basis of the Sigtran protocol stack. We consider an MSC/VLR-HLR mobile network segment and develop an analytical...
The ubiquitous access to multimedia services anywhere and at any time requires flexible service accommodation to user requirements and to device capabilities. At mobility of persons and devices, it is possible to enforce not only terminal-based adaptations, but also the media sessions can migrate from device to device to optimize the user experience. As the capabilities of mobile hand-held devices...
As traditional communication networks move to IP-based protocols, SIP based applications are rapidly introduced bringing evolution to telecommunication services but also some new challenges. SIP is accepted by 3GPP as a signaling protocol in IMS, IP-based architecture which is expected to take over a main role from legacy SS7 networks. Services in IMS are provided by application servers and, while...
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