Essays about: "voip gsm"

Showing result 1 - 5 of 7 essays containing the words voip gsm.

  1. 1. Parametric Prediction Model for Perceived Voice Quality in Secure VoIP

    University essay from Linköpings universitet/Informationskodning

    Author : Martin Andersson; [2016]
    Keywords : VoIP; QoS; Parametric model; Encryption;

    Abstract : More and more sensitive information is communicated digitally and with thatcomes the demand for security and privacy on the services being used. An accurateQoS metric for these services are of interest both for the customer and theservice provider. READ MORE

  3. 2. Impact and Multiplexing of SIP Signaling in GSM

    University essay from Institutionen för teknik och naturvetenskap; Tekniska högskolan

    Author : Pasha Ayani; Petter Gustafsson; [2009]
    Keywords : ;

    Abstract : By the introduction of IMS, future mobile voice traffic will gradually be based on IP. This means that GSM has to undergo further development in order to stay compatible with other mobile networks. Before introducing VoIP into GSM, the impact of the SIP signaling needs to be investigated. READ MORE

  4. 3. Voice over IP over GPRS

    University essay from KTH/Kommunikationssystem, CoS

    Author : Homayoun Derakhshanno; [2008]
    Keywords : VoIP; GSM; GPRS; WLAN; handoff; delay; synchronization;

    Abstract : The Voice over IP (VoIP) technology has become prevalent today due to its lower cost than traditional telephony and its ability to support new value-added services. Additionally, the increasing availability of wireless internet access has led to research studies examining the combination of wireless network access with voice over IP. READ MORE

  5. 4. Improving vertical handover performance for RTP streams containing voice : Using network parameters to predict future network conditions in order to make a vertical handover decision

    University essay from KTH/Kommunikationssystem, CoS

    Author : Daniel Yunda Lozano; [2007]
    Keywords : VoIP; Handover; WLAN measurements;

    Abstract : Wireless local area networks WLAN and Voice over IP technologies enable local low cost wireless telephony, while cellular networks offer wide-area coverage. The use of dual mode WLAN-cellular terminals should allow cost savings by automatically switching from GSM to WLAN networks whenever it is feasible. READ MORE

  6. 5. Secure data and voice over wireless networks in disaster and emergency response

    University essay from KTH/Mikroelektronik och Informationsteknik, IMIT

    Author : Tung Vu Hoang; [2005]
    Keywords : Disaster Response; WIDER; SIP; SRTP; MIKEY; VoWLAN; Satellite;

    Abstract : Communication is often limited in a disaster area and other emergency situations where no infrastructure exists or existing infrastructure has been destroyed. This makes its difficult for relief workers in the field to communicate with one another and with their home head office. READ MORE