All Mobile Network Operators (MNOs) as well as international carriers are moving voice services from the legacy Public Switched Telephone Network (PSTN) to Voice over IP (VoIP). The benefit is that VoIP traffic can be easily rerouted at any moment, thus giving companies a variety of options as traffic can be rerouted to any carrier of choice leading to different Quality of Service (QoS) levels (and thus agreements) as well as different prices to choose from. With a fierce competition for the telecom companies involved in the voice traffic hubbing business, this new landscape offers not only opportunities but also opens the system to vulnerabilities. The stakes are actually quite high: If harm can be done to one of these international carriers, other companies will route away their traffic. The result will be significant financial damages for the company as well as a serious harm to its reputation. The aim of this paper is to raise awareness that internationalcarriers and in particular their VoIP traffic can be exposed to debilitating attacks to harm these systems that are critical for our everyday life. The experimentation in this project demonstrates with a hands-on example how a major carrier can be hacked and rendered useless. In particular, we craft a framework for testing the security of interconnects between MNOs and international carriers. The central point of the paper will be to demonstrate how easy it can be to attack major carriers in the market: using common open source tools without having any information in advance. Moreover, the goal is to understand how the market functions, how interconnects between companies are built, where the weaknesses are, and which solutions can thwart those threats and secure these systems.

The master thesis deals with the topic of customer intimacy in mobile telecommunications and describes how the concept of a value-based strategic approach called "customer intimacy" can be applied in telecommunications industry, illustrated on an example of a mobile operator customer relationship lifecycle model. The goal of the thesis is to evaluate mobile telecommunications industry potential for application of the value discipline of customer intimacy and illustrate a high-level framework of Customer Lifecycle Management model as the first transformational step towards customer-intimate organizational design. The thesis sets main hypothesis on the assumption that adoption of the strategy and principles of customer intimacy enable a mobile operator to capture ownership of positive customer experience and secure a sustainable competitive advantage, thereby presenting a powerful counter-measure against the zero-growth industry outlook. As a sub-hypothesis the author postulates the statement that CLM infuses highly-effective methods to capture additional customer value and positively affect mobile operators' profitability. The theoretical part defines characteristics and components of customer value in business relationships and describes truths featuring the new world of competition. This new paradigm of competition leads to the definition of rules for delivering superior value in the following subchapter. Consequently, three value-based strategic approaches towards market leadership (denoted as "value disciplines") are identified and characterized. The second part presents the goals and key principles of the value discipline of customer intimacy and adverts to distinctions in theory and business practice. The author identifies forces driving strategic initiatives focusing on customer value perception and expectations. In this part the opportunities for adoption of customer intimacy in consumer telecommunications industry are also assesses. The penultimate subchapter describes concept of customer experience cycle that will be leveraged in the practical part of the thesis. The last subchapter then examines the importance of service identity for telecoms' successful adoption of the discipline of customer intimacy. The third part is analytical and provides industry research of European telecommunications market. The individual subchapters describe trends in development of fundamental performance indicators. In the fourth, practical part, the author presents the topic of customer lifecycle management. It describes what basic set of expectation customers have towards the relationship with a mobile operator. Then, a conceptual framework of customer lifecycle model is composed and analyzed. The penultimate subchapter pinpoints measures of value based customer profitability, interprets their applicability for decision-making on market investments, and indicates their interlock to value for shareholders. In the last subchapter, a set of recommendations is provided to mobile operators considering infusion of customer intimate principles into their organization. With respect to the practical part and main hypothesis, the author regards the goal of the thesis as fully achieved and the sub-hypothesis of the practical part as confirmed as well. The author used the following methods of research: general research of corporate strategy, marketing and CRM literature, interviews with telecommunications professionals, analysis of corporate financial filings, collection and reading of market research papers and consulting reports, study of statistical data.

This research investigates the European Mobile Telecommunications industry, looking at the biggest strategic challenges Mobile Operators are going to face in the next years. Mobile Services platforms represent the most important paradigm in the industry. Companies as Apple, Google and Facebook have successfully married new consumer devices and Internet platforms with a variety of online services and content undermining Operators ́ central role in the value network. This scenario highlights the importance to investigate how Operators can adopt successful strategies to keep on playing a meaningful role in the Mobile Services domain.These strategies are identifies and mapped adopting a value network model for the Mobile Services domain. This model is the main contribution of this research, tracking new ways of cooperating among them. Operators ́ strategies revolve around two main drivers: defeating networks congestion (investing in network upgrade, optimization & spectrum auctions, charging Service Providers for HQ delivery services and elaborating data price plans for mobile customers) and finding new revenue opportunities (working with Service Providers to offer Location-based services, offering charging services to interested parties and working on Mobile Services platforms).As first step, the investigation offers an overview over the industry, looking at static (actors, technologies, services, devices, end-users and value network configuration) as well as dynamic (trends as Open Mobile, MVNOs, Fixed-Mobile Convergence and Substitution and 4G adoption) aspects. Then the research continues analyzing Mobile Services platforms, proposing an interesting approach to classify scientific articles about this topic. Italy is analyzed as case study and subsequently the model is developed. To conclude the study deals with some reflections about the delicate topic of shaping strategies after a massive usage of end-users data to provide innovative and sophisticated mobile services.

This thesis is concerned with analysis of the mobile operators in the Czech Republic. Introduction part of thesis is devoted to the explanation of the key indicators which are used by mobile operators to analyze the rate of customer churn, or average revenue per user, or the customer value. Very importat is also a comparison of price consumption baskets in the Czech Republic with the other countries. The situation has changed dramatically offering unlimited tariffs in the already fully saturated market. In the practical part of this thesis I have focused on a detailed analysis of customers data in Vodafone company a I have reviewed the current offer of affordable tariffs and data services. I tried to implement new tariffs based on a real information of all customers - individuals over a period of 3 months. The aim of the thesis is to propose tariffs and services for customers, which would maintain the current customer base or which would increase the base slightly.