Sökning: "Security in IP Telephony"

Visar resultat 11 - 15 av 18 uppsatser innehållade orden Security in IP Telephony.

  1. 11. A Session Initiation Protocol User Agent with Key Escrow

    Master-uppsats,

    Författare :MD. Sakhawat Hossen; [2009]
    Nyckelord :Lawful Interception; Key escrow; SRTP; MIKEY; PKI; Digital Signature;

    Sammanfattning : Voice over Internet Protocol (VoIP), also called IP telephony is rapidly becoming a familiar term and as a technology it is invading the enterprise, private usage, and educational and government organizations. Exploiting advanced voice coding & compression techniques and bandwidth sharing over packet switched networks, VoIP can dramatically improve bandwidth efficiency. LÄS MER

  3. 12. A mobile SIP client : From the user interface design to evaluation of synchronised playout from multiple SIP user agents

    Master-uppsats, KTH/Kommunikationssystem, CoS

    Författare :Athanasios Karapantelakis; [2007]
    Nyckelord :playout buffering; minisip; port; pocket pc; synchronization;

    Sammanfattning : The thesis examines the ability to have synchronized playout of audio from multiple devices. The paths between the source of this audio and the output devices may be different. Our objective is to provide a generic low-cost solution, without the use of special hardware. LÄS MER

  4. 13. Ip-telefoni med Skype som ett alternativ till PSTN för privatanvändare

    Kandidat-uppsats, Blekinge Tekniska Högskola/Avdelningen för för interaktion och systemdesign

    Författare :Elinor Axelsson; [2007]
    Nyckelord :IP-telefoni; Skype; PSTN; Fristående kurs;

    Sammanfattning : The project is a practical and theoretical test of IP telephony with Skype in order to form a base for a comparison between IP-Telephony with Skype and the Public Switched Telephony Network (PSTN). PSTN is the common standard that most of us use for telephony today. LÄS MER

  5. 14. VoWiFi Roaming

    Master-uppsats, KTH/Kommunikationssystem, CoS

    Författare :Syed Muhammad Ali; [2006]
    Nyckelord :Voice over WiFi;

    Sammanfattning : Freedom is human’s natural instinct, which was limited by Ethernet and Fixed Telephony Era. With the emergence of new technologies like wireless fidelity (WiFi) and voice over IP (VoIP) humans once again have freedom of movement; which at the very same time provides enough reasons to change the market dynamics of communication industry. LÄS MER

  7. 15. Corporate Wireless IP Telephony

    Master-uppsats, KTH/Mikroelektronik och Informationsteknik, IMIT

    Författare :Raúl García Hijes; [2005]
    Nyckelord :IP telephony; large corporation; VPN; SIP; MIP; mobility; scalability;

    Sammanfattning : IP telephony is defined as the transport of telephony calls over an IP network. IP telephony exploits the integration of voice and data networks. However, enterprises are still reluctant to deploy IP telephony despite the potential increase in productivity and reduction of costs. LÄS MER