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Transformation of Telco business strategy driven by over-the-top services such as WhatsApp, Skype and Netflix: The case of the Czech Republic
Kabusheva, Sabina ; Tyll, Ladislav (advisor) ; Machek, Ondřej (referee)
The following thesis aims to describe the transformation of telco operators' business strategy evoked by the growing popularity and usage of Internet services like WhatsApp, Skype and Netflix, also known as over-the-top services. The thesis provides comprehensive overview of transformations in the telecom industry that have been taking place globally, explaining the drivers that led to inception of free or cheaper Internet-based services, their business models. It then narrows down to the thorough analysis of the Czech market, capturing the implications that over-the-top services have on business strategy of the major Czech telco players. The analysis is strongly supported by industry reports, statistics and quantitative research. The primary research adds in telco customers' perspectives, usage and value perception of over-the-top services, as well as their satisfaction with respective telco services and their pricing. Derived findings identify major developments and trends in the Czech telco market; they also suggest compelling observations for related businesses.
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VoIP in a wireless network of VŠE
Švarc, Lukáš ; Pavlíček, Luboš (advisor) ; Matuška, Miroslav (referee)
The diploma thesis is focused on exploring the possibility of VoIP service in a wireless network of University of Economics, Prague. This thesis describes the basic principles of VoIP and related wireless technologies necessary for its quality and stable operation. Subsequently, different configurations of wireless network and end clients are tested and compared, including its impact on ordinary users, in a laboratory environment with idle and fully utilized frequency band. Finally, a roaming operation with the use of several advanced 802.11 standards is tested in the real environment of the Old building in Žižkov. In conclusion, the ideal settings for all telecommunication devices are recommended in order to maximize the quality of VoIP operation and to minimize the negative impact on ordinary users.
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Economic and technical aspects of the use of IP telephony in the segment of small and medium-sized businesses
Holásek, Lukáš ; Doležel, Michal (advisor) ; Buchalcevová, Alena (referee)
This work is focused on the introduction of VoIP technology in the environment of small and medium-sized company from techno-economic perspective. The work introduces the VoIP technology in terms of functionality, but also with economic aspects of IP telephony. The aim is to determine whether the transition to VoIP technology may reduce corporate telecommunication costs while contributing to the development of corporate communications. Readers are shown the advantages, but also what the limitations and difficulties are associated with the transition to VoIP technology. The beginning is devoted to basic characterization of classical phone technology, which is good to know when deciding if one should migrate to VoIP. The work also describes the development of the telecommunications market in the Czech Republic in the context of the payment of charges for telecommunications. The practical part analyzes the specific deployment of a VoIP solution to one of Czech companies.
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Optimalizace univerzitní bezdrátové sítě pro provoz hlasových služeb
Konečný, Jakub
This diploma thesis focuses on the issue of evaluation VoIP services (from the perspective of QoE) and their quality in university network. It includes theoretical basics of VoIP testing, principals of QoS, and also overview of QoE/MOS measurement methods. Next part describes the test bed and methodology used for measurements and evaluating of results. Site survey results and VoIP quality measurement are evaluated at the end, followed by recommendations that can lead to better VoIP quality in MENDELU wireless network.
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Autoconfiguration of IP phone
PANUŠKA, Václav
The main topic of this bachelor thesis is Autoconfiguration of IP telephones in a business environment based on open-source software. The advantage of this solution is lower financial burden on the company and easier management of IP phones. The theoretical part is a description of the basic resources VoIP telephony and autoconfigu-ration system of IP phones. The practical part describes the practical configuration of the servers that are used in VoIP and practical verification of autoconfiguration system with IP phone Cisco SPA 502.
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VoIP - new way of communication
Černý, Jan ; Pavlíček, Antonín (advisor) ; Škop, Miroslav (referee)
The subject of this bachelor thesis is IP telephony as a new way of communication capable of replacing the current analogue telephony adequately. The aim is to introduce the VoIP environment, principles and also its real use. The thesis is divided into three parts. The first part is focused on the above mentioned environment as well as on used layers and protocols of OSI and TCP/IP models. The second part looks into the VoIP technology itself, from voice digitalization to voice transfer using various protocols. Discussed is older signalization protocol H.323 and its successor SIP. Furthermore the chapter examines various VoIP types and threads to VoIP as well as terms like QoS or ENUM. The third part contains a case study of implementing VoIP in practise. The case study shows matters that need to be taken into consideration when implementing this technology but mainly reveals how much can be saved per month, how big is the initial investment and its rate of return.
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VoIP- IP network voice communication
BERAN, Václav
The possibility for using the VoIP technology as an alternative solution for the te-lephone system is very attractive. The main reason is the widely expanded computer sites and also their higher effectiveness. The main goal of the work is to describe the VoIP technology and create the first publication in Czech republic which deals with this theme in details. First of all I concentrate on the explanation of the basic words, conceptions and principles necessary to fully understand the whole field. The main scope of the work is VoIP technology which is described in third chapter. There are described also the methods of voice coding, signalling protocols (SIP, H.323, MGCP, IAX) and issues related with QoS. The work also covers the Skype program with descriptions of it's principles, installation and control.
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VoIP exchange in medium enterprise
Hanousek, Lukáš ; Pavlíček, Luboš (advisor) ; Beneš, Jiří (referee)
Main subject of this work is an application Asterisk, which is one of possible solutions of VoIP telephone exchange for companies. The advantage of Asterisk is its adaptability for company's specific demands. It also offers a lot of options in configuration. The first chapter deals with basic terms from VoIP technology like codecs, protocols or end use device, which are typical for this area. The next chapter presents application Asterisk in detail -- describes parameters, installation and configuration. Asterisk is characterized by wide range of service support and it has a lot of functions. These functions are described in the next chapter. Finally I show how this application works in medium enterprise (test case).
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