Sökning: "voice ip"
Visar resultat 1 - 5 av 107 uppsatser innehållade orden voice ip.
1. SIPman : A penetration testing methodology for SIP and RTP
Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för datavetenskapSammanfattning : Background. SIP and RTP are two protocols that are widely used, and they play an important role in VoIP services. VoIP is an integral part of many communication services, e.g. LÄS MER
2. Evaluation of the Perceived Speech Quality for G729D and Opus : With Different Network Scenarios and an Implemented VoIP Application
Master-uppsats, Linköpings universitet/InformationskodningSammanfattning : Communication has always been a vital part of our society, and day-to-day communication is increasingly becoming more digital. VoIP (voice over IP) is used for real-time communication, and to be able to send the information over the internet must the speech be compressed to lower the number of bits needed for transmission. LÄS MER
3. Homomorphic Encryption for Audio Conferencing
Master-uppsats, Linköpings universitet/Institutionen för datavetenskapSammanfattning : Homomorphic encryption (HE) enables computations on encrypted data making it possible to perform calculations on a server without sharing the secret key for decryption. HE is relatively new and has seen significant improvements in recent years in terms of speed of encryption, decryption, operations, and the number of operations possible to perform in a row without damaging the ciphertext. LÄS MER
4. Security Auditing and Testing of two Android Client-Server Applications
Kandidat-uppsats, Linköpings universitet/Institutionen för datavetenskapSammanfattning : How secure is your application? How can you evaluate if it is secure? The threats are many and may be hard to find. In a world where things are more and more automated; how does manual labour contribute to security auditing applications? This study aims to assess two proof of concept Android client-server applications, developed by students to suit the needs of a fictitious Police Department and Fire Department, respectively. LÄS MER
5. Analyzing VoIP connectivity and performance issues
Kandidat-uppsats,Sammanfattning : The appearance of Voice over IP (VoIP) revolutionized the telecommunications word, this technology delivers voice communications over the internet protocol (IP) networks instead of the public switched telephone network (PSTN), calls can be made between two VoIP phones as well as between a VoIP phone and an analog phone connected to a VoIP adapter [1]. The use of this technology gives access to more communication options compared to the conventional telephony but the users face different problems, mostly connectivity and performance issues related to different factors such as latency and jitter [2], these factors affect directly the call quality and can result in choppy voice, echoes, or even in a call failure. LÄS MER