Search for dissertations about: "IP Telephony"

Showing result 1 - 5 of 13 swedish dissertations containing the words IP Telephony.

  2. 1. IP telephony : Mobility and security

    Author : Jon-Olov Vatn; Björn Pehrson; William Arbaugh; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telekommunikation; Telekommunikation; Telecommunication; Telekommunikation;

    Abstract : 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. READ MORE

  4. 2. Quality aspects of internet telephony

    Author : Ian Marsh; Karlsson Gunnar; Henning Schulzrinne; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Telecommunication; Telekommunikation; VoIP;

    Abstract : Internet telephony has had a tremendous impact on how people communicate.Many now maintain contact using some form of Internet telephony.Therefore the motivation for this work has been to address the quality aspectsof real-world Internet telephony for both fixed and wireless telecommunication. READ MORE

  5. 3. Transport Services for Soft Real-Time Applications in IP Networks

    Author : Karl-Johan Grinnemo; Anna Brunström; Reiner Ludwig; Philippe Owezarski; Karlstads universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; transport protocol; congestion control; partial reliability; soft real-time; SCTP; failover; SIGTRAN; head-of-line blocking; Computer science; Datavetenskap; Datavetenskap; Computer Science;

    Abstract : In recent years, Internet and IP technologies have made inroads into almost every communication market ranging from best-effort services such as email and Web, to soft real-time applications such as VoIP, IPTV, and video. However, providing a transport service over IP that meets the timeliness and availability requirements of soft real-time applications has turned out to be a complex task. READ MORE

  6. 4. Modeling, Implementation and Evaluation of IP Network Bandwidth Measurement Methods

    Author : Andreas Johnsson; Mats Björkman; Bob Melander; Gábor Vattay; Mälardalens högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computer networks; Bandwidth measurement; Wireless networks; Computer science; Datavetenskap; Datavetenskap;

    Abstract : Internet has gained much popularity among the public since the mid 1990's and is now an integrated part of our society. A large range of high-speedbroadband providers and the development of new and more efficient Internet applications increase the possibilities to watch movies and live TV, use IP-telephony and share files over the Internet. READ MORE

  7. 5. Improving the Timeliness of SCTP Message Transfers

    Author : Per Hurtig; Anna Brunstrom; Johan Garcia; Karlstads universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; SCTP; transport protocols; network emulation; loss recovery; Nagle algorithm; Computer science; Datavetenskap; Materials Engineering; Materialteknik;

    Abstract : Due to the cheap and flexible framework that the underlying IP-technology of the internet provides, IP-networks are becoming popular in more and more contexts. For instance, telecommunication operators have started to replace the fixed legacy telephony networks with IP-networks. READ MORE