Sökning: "sip voip"

Visar resultat 16 - 20 av 56 uppsatser innehållade orden sip voip.

  1. 16. Analys av datakommunikationssäkerhet för VoIP-protokoll

    M1-uppsats, KTH/Data- och elektroteknik

    Författare :Sanhawad Boongerd; Fredrik Lindstein; [2012]
    Nyckelord :Swedish Armed Forces; Voice over IP; H.323; SIP; network security and countermeasures; voice and video communication.; Försvarsmakten; Voice over IP; H.323; SIP; säkerhetsrisker och -åtgärder; röst och videokommunikation.;

    Sammanfattning : Voice over IP (VoIP) is a relatively new technology that enables voice calls over data networks.With VoIP it is possible to lower expenses, and increase functionality and flexibility. LÄS MER

  3. 17. SIP Security Threats and Countermeasures

    Magister-uppsats, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)

    Författare :Faisal Mahmood; [2012]
    Nyckelord :Security of SIP;

    Sammanfattning : With the emergence of multimedia applications and the upcoming age of Voice over IP (VoIP), Voice setup and resources control protocols such as SIP and H.323 over the Internet are becoming increasingly attractive applications. LÄS MER

  4. 18. Green VoIP : A SIP Based Approach

    Master-uppsats, KTH/Kommunikationssystem, CoS

    Författare :Goce Talaganov; [2012]
    Nyckelord :SME; home; VoIP; SIP; energy efficiency; low-power; IP telephony system; WRT54GL; DD-WRT; cloud services;

    Sammanfattning : This master thesis presents, examines, designs, implements, and evaluates with respect to energy efficiency a secure and robust VoIP system. This system utilizes a Session Initiation Protocol (SIP) infrastructure assisted by a cloud service, specifically focusing on small to medium sized enterprises (SME) and homes. LÄS MER

  5. 19. Analysis of Queues for Interactive Voice and Video Response Systems : Two Party Video Calls

    Master-uppsats, KTH/Kommunikationssystem, CoS

    Författare :Venkatesh Chengegowda; [2012]
    Nyckelord :IVVR; Queue; media transcoding; SIP; Asterisk; DiaStar; IIVVR; kö; media omkodning; SIP; Asterisk; DiaStar;

    Sammanfattning : Video conversation on mobile devices is popularizing with the advent of 3G. The enhanced network capacity thus available enables transmission of video data over the internet. It has been forecasted by several VOIP service organizations that the present IVR systems will evolve into Voice and Video Response (IVVR) Systems. LÄS MER

  7. 20. Evaluation of VoIP Security for Mobile Devices

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Prajwol Kumar Nakarmi; [2011]
    Nyckelord :VoIP; smartphones; IMS; SIP; SRTP; MIKEY-TICKET; GBA GBA Digest;

    Sammanfattning : Market research reports by In-Stat, Gartner, and the Swedish Post and Telecom Agency (PTS) reveal a growing worldwide demand for Voice over IP (VoIP) and smartphones. This trend is expected to continue over the coming years and there is wide scope for mobile VoIP solutions. LÄS MER