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Videoconference potentials in PBX Asterisk
Vlk, Bronislav ; Číka, Petr (referee) ; Krajsa, Ondřej (advisor)
This thesis deals with the possibilities of video conferencing in Asterisk PBX and their use in practice. They also described the contingencies and how its configuration. Particular attention is paid to the protocols SIP, IAX and H.323, which are described in one of the chapters. The thesis was created by the Asterisk PBX, which demonstrates cooperation with videoconferencing clients. The thesis describes the configuration files so that the central set. Conclusion the work assesses the use of codecs for different clients.
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Videoconference System for Distance Learning
Regueyra, Philip ; Szőcs, Juraj (referee) ; Polívka, Michal (advisor)
The aim of my diploma thesis is to introduce the problematic of today’s videoconference system and to compare the existing solutions. First chapters of my work are dedicated to a description of the theory of the conference system. Furthermore there is described the application Skype and application WebEx. These are the projects that are the nearest to the submission of this work. On the basis of the acquired information, the thesis is dealing with the creation of my own solution of video conference system. In the third chapter there are described all the used technologies needed for the realization of the project. The thesis is then dealing with the creation of own client on the platform Silverlight. This client is working on the components that play the multimedia content and on the service WCF RIA. After the part dedicated to a creation of the client, there are described the settings of services Windows Server 2008, on which the solution is realized. There are described the settings of services of web server, services of multimedia media, settings of SQL server and usage of program Windows Media Encoder. The last part is dedicated to a testing and plotting of the functionality of created video conference system. In the conclusion of the work there are evaluated the results of the work and described possible directions, where the development of the client of video conference could proceed.
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SIP Protocol Implementation
Dušek, Martin ; Zukal, Martin (referee) ; Číka, Petr (advisor)
This Master’s thesis deals in detail with the SIP protocol – a method of communication between two entities, various types of transmitted messages and their content. Few SIP libraries are introduced and two of them are used for development of an application for audio/video conference-calls. Compilation of OPAL and PTlib libraries for Windows 7 Professional (64bit) is described, and problems resulting from lack of information provided by authors. New improved “how to build” is presented. At the end, paper focuses on several ways of development of mentioned application.
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Efficiency of Wireless Networks from Services View
Buchta, Marek ; Vymazal, Michal (referee) ; Škorpil, Vladislav (advisor)
Subject of this thesis was the issue of effectiveness of wireless networks from the perspective of services. Become acquainted with WiFi network standard IEEE 802.11 with protocols and principles of WiFi networks and services. It should be focused on the quality of service QoS. In teoretical part of this thesis are described problems considering wireless networks, layer model and types of nets used in WiFi. Standard IEEE 802.11 is analysed in details including supplements and used packets. Special attention is paid to the quality of service QoS. Next are discussed the principles and application services as VoIP, videoconferencing, video streaming and others in WiFi network. On the basis of obtained knowledge is designed extensive WiFi network with assured supply of services. For modelling and simulation of wireless network is used software development environment Opnet Modeler. Model of wireless network is used to optimize and analyse this wireless communication network. In thesis are also simulated properties of data which are sensitive to delay. In last part of thesis is created a laboratory work, which contains a submission of task, detailed theory, wiring diagram, instructions for elaboration, guidelines for simulation and example of elaboration of task. Work is about comparison of network with used 802.11b and 802.11e standard, and support of quality of service QoS.
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IMS multimedia services
Dohnálek, Václav ; Martinásek, Zdeněk (referee) ; Mácha, Tomáš (advisor)
This master thesis refers to a new technology in a mobil services IP multimedia subsystem. First, the theoreticl part, refers to the architectury of this technology and elementary protocols. Although it is real-time services, is nesessary to refer about the Quality of Services, that it ensures the condent transmition of data. The second, practisy part refers to a the development background SDS 4.0 FD1 from Ericsson ltd., that it is used develop aplications for IMS technology. It will be to develop the aplication , that it used to the IMS and it refers to the elementary function and comunication.
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HTML5, getUserMedia and its use with camera
HEJTMÁNEK, Lukáš
The AIM of this thesis is the current analysis of the development of new method getUserMedia in web browser, which is a part of HTML5. This technology enables the website to approach to the webcam or microphone. In the past this was possible only via using of plugins, which had to be installed. Nowadays mainly Adobe Flash belongs to these plugins. This thesis deals with advantages and disadvantages of this new technology against other technologies enabling to approach to the webcam. There will be carried out testing of support of this new technology in available versions of browsers either desktop or mobile (smartphones/tablets). As a practical part of my work I will create a set of examples, which will be available on the Internet. The main practical example will be a creation of a simple web application enabling videoconferencing using getUserMedia and third-party frameworks.
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Marketing strategy for the company providing videoconferencing
Procházková, Magda ; Střížová, Vlasta (advisor) ; Forman, Martin (referee)
For success in the business market, all companies must have well-developed marketing strategy. In today's information society internet plays an important role and therefore an internet marketing strategy too. This thesis first briefly deals with the specifics of marketing and marketing in services. In addition it describes the marketing on the internet and its tools (SEO, PPC, etc.). The last chapter of theory describes creation of off-line and on-line marketing strategies. The practical part starts with the analysis phase. This phase includes description of videoconferences and their technologies. Furthermore it contains description of Mojekonference service, with the help of Porter's analysis describes the competitive environment, deals with detailed market analysis, market research (using questionnaires), the creation of marketing tools, analysis of current marketing strategies and especially the analysis of website (keywords, SEO, etc.) The last section deals with the designing of marketing strategy, product, pricing, communication and distribution policy, makes a new structure of website and proposes a website advertising PPC campaign in Google AdWords.
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Options and use of multimedia communications in the corporate practice
Veselý, Petr ; Krsek, Libor (advisor) ; Horný, Stanislav (referee)
This work puts a number of objectives, describe the potential uses, examples of software and hardware solutions and highlight the trends and innovations in the field of multimedia communications. The reader will be given to the problems of multimedia communication and multimedia, including a description of the components of multimedia. In the next chapter we will find the description of the means of multimedia communication, where a brief description of the possibilities of products and their facilities and most of the chapters focuses on virtual reality. Another part is devoted to the use of multimedia communication in a company, especially how it should be used effectively. The final part deals with modern technologies and trends in the area of control, imaging and miniaturization. The work is written in a way that the reader does not require previous knowledge of advanced technologies which are described, except of a general overview of information technologies.
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VLIV IT A SW PROSTŘEDKŮ NA FIREMNÍ
Chlebík, Tomáš ; Střížová, Vlasta (advisor) ; Kubeš, Jiří (referee)
Komunikace je v dnešní době základním klíčem k úspěchu. Rychlost, dostupnost a kvalita předávaných informací je schopna ovlivnit nejen budoucnost firem, ale také jedinců. Cílem práce je poskytnout ucelený přehled o dostupných IT a SW prostředcích pro firemní komunikaci. E-mail, hlasová komunikace, videokonference, portály, ale také virtuální prostředí jsou postaveny proti klasickým formám komunikace jako je meeting a korespondence. V práci je vytvořena metodika umožňující srovnání jednotlivých forem komunikace z pohledu jejich vlastností, vhodností jejich použití pro různé modelové typy komunikace a možnosti jejich nasazení v interní a externí firemní komunikaci. Poslední kapitola práce demonstruje možnost aplikace zjištěných závěrů a získaných poznatků na středně velkou stavební firmu.
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VLIV IT A SW PROSTŘEDKŮ NA FIREMNÍ
Chlebík, Tomáš Ing. ; Střížová, Vlasta (advisor)
Komunikace je v dnešní době základním klíčem k úspěchu. Rychlost, dostupnost a kvalita předávaných informací je schopna ovlivnit nejen budoucnost firem, ale také jedinců. Cílem práce je poskytnout ucelený přehled o dostupných IT a SW prostředcích pro firemní komunikaci. E-mail, hlasová komunikace, videokonference, portály, ale také virtuální prostředí jsou postaveny proti klasickým formám komunikace jako je meeting a korespondence. V práci je vytvořena metodika umožňující srovnání jednotlivých forem komunikace z pohledu jejich vlastností, vhodností jejich použití pro různé modelové typy komunikace a možnosti jejich nasazení v interní a externí firemní komunikaci. Poslední kapitola práce demonstruje možnost aplikace zjištěných závěrů a získaných poznatků na středně velkou stavební firmu.
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