began with small steps in 1989 with the issuance of a licence to a private operator for the provision of inter alia cellular mobile services to compete with the previous monopoly provider of telecommunications services the Bangladesh Telegraph and Telephone Board (BTTB). Significant changes in the number of fixed and mobile services deployed in Bangladesh occurred in the late 1990s and the number of services in operation have subsequently grown exponentially in the past five years. The incentives both
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social and ethical issues surrounding the case‚ and what countermeasures could have been used to prevent Poulsen’s attacks. What he is Famous for? Kevin‚ like many hackers‚ began his hacking at a very early age. At age 13 he was hacking into telephone systems to impress friends‚ so that he and they were able to make free calls to long distance numbers. This activity is known as ‘phreaking’‚ and at the time was largely used for fun‚ although malicious uses could be made. By age 17 Kevin and a
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Assessment document has 13 pages and is made up of 9 Sections. Section 1: Using the telephone This section will help you to evidence Learning Outcome 1: Understand how to make and receive telephone calls. Learning objective Place in Assessment 1.1 Describe the different features of telephone systems and how to use them Question 1 Page 1 1.2 Describe how to follow organisational procedures when making and receiving telephone calls Question 2 Page 2 1.3 Explain the purpose of giving a positive image of
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using TCP/IP Public or private • Runs over any packet-switched network VoATM (voice over ATM) VoDSL (voice over DSL) Data connection types carrying VoIP signals • T-carriers‚ ISDN‚ broadband cable‚ satellite connections‚ WiFi‚ WiMAX‚ cellular telephone networks IP Telephony Internet telephony • VoIP relies on Internet • Advantage: breadth and low cost Private lines can also carry VoIP calls • Effective and economical • Network congestion control capabilities Better sound quality Non-Data
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AT&T Corporation can trace its root to the American Telephone and Telegraph Company. The original company was founded in 1885 by American Bell to create a network of long-distance communication nationwide with a commercially viable cost-structure. In 1899‚ the company in turn acquired the assets of American Bell in order to bypass Massachusetts corporate law that limited the capitalizations of corporations. By 1915‚ long distance telephone service reached San Francisco and transatlantic services
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operators and expensive towers often at intervals of only ten to thirty kilometres (six to nineteen miles). As a result‚ the last commercial line was abandoned in 1880.[4] Telegraph and telephone[edit] Main articles: Electrical telegraph‚ Transatlantic telegraph cable‚ Invention of the telephone‚ and History of the telephone Stock telegraph ticker machine byThomas Edison A very early experiment in electrical telegraphy was an ’electrochemical’ telegraph created by the German physician‚ anatomist
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Communication/Video Conferencing 5. VOIP Copyright 2012@ M.Fahad Khan Computer-Based Telephony • a.k.a Computer Telephony i ntegration (CTI) • Computer telephony i ntegration‚ also called computer–telephone integration or CTI‚ is a common name f or any t echnology that allows interactions on a telephone and a computer t o be integrated or coordinated. • The t erm is predominantly used t o describe desktopbased interaction f or helping users be m ore efficient‚ though it can also refer to server-
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Telecom reforms was initiated in 1994‚ there were three incumbents in the fixed service sector‚ namely DoT (Department of Telecom)‚ MTNL and VSNL. Of these‚ DoT operated in all parts of the country except Delhi and Mumbai. MTNL operated in Delhi and Mumbai and VSNL provided international telephony. Given its all-India presence and policy-making powers‚ the DoT enjoyed a monopoly in the telecom sector prior to the major telecom reforms. However‚ subsequent to the second phase of reforms in 1999‚
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CAPE INFORMATION TECHNOLOGY UNIT TWO MODULE TWO – I.T. TOOLS FOR REMOTE COMMUNICATION USE OF INFORMATION TECHNOLOGY TOOLS TO ACCESS AND COMMUNICATE WITH REMOTE INFORMATION SOURCES Information technology - the tools and techniques used to process and communicate information Remote information source - information held in or on a computer or other medium which is not located in the same physical location as the person wanting access to this information. In order to access remote information
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More and more companies look to the internet for phone service rather than the standard telephone companies. It was not always this way. Private Branch Exchange are not used as much anymore because technology has grown so much and we depend so much on computers and the technology that they provide to us. Seattle Times Case Study In 2001‚ the Seattle Times was forced to research a new vendor for their telephone communications. They were currently using a private branch exchange (PBX) system‚ and
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