Table of Content
Introduction 3
PBX and Centrex 4
Rotary and DTMF 6
WATS and Leased Lines 7
ISO and OSI 9
Conclusions 11
Reference List 12
Introduction
Networking and telephony is a part of our everyday environment, whether it be in our homes or in our place of business. We will somehow come into contact with one or the other in some shape or fashion. At Baker, we are no different from any other business. The infrastructure of Baker is not a simple pc and telephone setup. The network incorporates everything from a simple analog line to our data network backbone that is made of T-3 lines, ISND lines, and IPFR provided by the AT&T datacenter. Baker has 30 offices all over the country and a couple of offices in abroad in Europe. I will be discussing the setup of the Houston office, since I am most familiar with this office.
PBX and Centrex
The Houston office of Baker is comprised of three types of phones, well, at least until the company moves into one central location. Currently there are three offices in Houston that are all a block apart. The building that I support houses an old Merlin Legend telephone system. It's funny, because I have to set the date on the voicemail to the year 1999 so that when users check their messages, it will give the correct month and date. The system is comprised of about 100 direct-inward dialed (DIDs), some used as analog and some use as digital lines. The digital lines are ISDN lines that allow for digital transmission of voice and data over ordinary telephone copper wires. Direct-inward dialing routes calls from the outside lines to the PBX, which allows telephone systems to bypass an operator. The PBX then routes the call to the desired extension an...
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... developers a better understanding of how to better design a network and works very well when they have to trouble shoot a problem. The end-users and specialized developers do not necessarily use the OSI model as a business tool to gain more clients, but they are indeed using the concept whenever they go out and market to clients about out hosting abilities.
Conclusions
With the internet and better means of communication being developed on a daily basis, there is going to be a constant change in the way data networks and telephony are today. We have gone from rotary dialed phones, which I can vaguely remember at my grandmother's house to voice recognition cell phones that dial the number for you. We have also went from some crazy number in the past for data travel, like 33 baud/s to what we are at today, reaching speeds that I can't imagine of over 12Mb/s.
Telecare unit. Being the nurse manager, he assumes the leadership in developing professional relationship among the multidisciplinary team. Mr. Thathamkulam has an open door policy and instructs all his staff to report to him any problems, which arise time to time so that it can be taken care of in the initial stage. He monitors all the team members on a daily basis. Mr. Thathamkulam functions as the chair of the safety committee for Eye Care Line; he monitors for Joint Commission safety compliance in the care line, identifies safety hazards, follows up with fire drills, attends hospital wide safety meetings, conducts quarterly safety meetings in the care line and reports to the hospital wide safety committee chair. He attends nurse manager
Cisco Designs, manufactures, and sells Internet Protocol (IP) - based networking and other products related to the communications and information technology (IT) industry and provide services associated with these products and their use. The company provides products for transporting data, voice within buildings, across campuses and globally. The products are utilized at enterprise businesses, public institutions, telecommunications companies and other service providers, commercial businesses, and personal residences. Cisco conducts its business globally and manages its business geographically. Its business is divided into the following three geographic segments: The Americans; Europe, M...
It is crucial that individuals take precautions when using technology to have conversations with others. Due to the fact that it can be dangerous, effective telephone communication is very important. Before using technology as communication devices, it is a good idea to know the main issues regarding it. It is also a good idea to know about any recent developments and how it affects its users. By making sure the technology has high ratings and positive feedback, there is a greater chance that you will be happier with the outcome of your purchase.
Cisco Systems is one of the largest network communications company in the world. Cisco provides networking solutions that customers use to build a integrated information infrastructure of their own, or to connect to someone else’s network. Cisco also offers an extensive range of hardware products used to form information networks, or to give them access to these networks. Cisco also has it’s own software called IOS software, which provides network services and enables networked applications. Cisco serves customers in a wide range of businesses, such as corporations, government agencies, utilities, and educational institutes, and small to medium size businesses. Cisco sells it’s products worldwide. They serve as many as 115 different countries. They have more than 225 sales and support offices in 75 countries. Cisco strongly believes in the advantages of a global networked business. By using networked applications over the internet and it’s own internal network, Cisco is gaining financial contribution of at least $825 million a year in operating costs savings and revenue enhancements. Today, Cisco is the largest commerce site, with 87% of their orders are transacted over the web.
Years later, the Telecommunication Act of 1996 triggered dramatic changes in the competitive landscape. SBC Communications Inc. established itself as a global communications provider by acquiring Pacific Telesis Group and becoming the new AT&T. The merger of AT& T and BellSouth, along with the ownership consolidation of Cingular Wireless and YELLOWPAGES.COM, will speed convergence, competition and continued innovation in the communications and entertainment industry, creating new solutions for consumers and businesses and positioned to lead the industry in one of its most signifi...
Astonishing, over the course of 40 years the dynamic way handheld technology has evolved, from humble beginnings, in the 1970’s with Martin Cooper being the first person noted to make a cellular phone call in public to now over six out of the seven billion people have cell phone. Cellular technology in which enables people to call beyond any border and share unlimited information at any moment.
Phones have come a long way from their beginnings. When the first phone was developed, a mere phone call took up to ten minutes just to connect. The calls made on this phone would go through a system of connections where the caller would have to state who they were calling and where the person lived. It would be many years later that a telephone would be created that made use of a dial, which made calling easier. In 1963, the first pushbutton telephone was distributed by the company, Bell Telephone. In 1983, the first cellular device, the Motorola DynaTAC 8000X, was created, which took the world by storm. Soon later, miniature computers were being put in these devices, allowing the user to browse parts of the web while on their cellular device. Yet we wouldn’t see a product that allowed us to browse the web, communicate with others, and let us store music and run apps, until 2007. (ht...
Background One. Tel was launched by Jodee Rich and Brad Keeling in 1995 (Cook, 2001). At first, it looked to get the advantages from deregulation of the telecommunication industry by reselling other network’s capacity and making money through stock market speculation. Rich and Keeling tried to increase the company’s shares rather than profit the company (Cook, 2001). Initially, One.
Cellular phones carry a diverse group of users. In June 1985, there were about 203,000 cellular phone service subscribers. By June 1989, the number had exploded to 2.7 million subscribers, and by June 1995 there were mire than 26 million subscribers. When cell phones were first introduce, only people with a lot of money had them and the service was very expensive. It was a lot cheaper to stop and use the pay phone than it was to use a cell phone. Now, it is almost as cheap to use a cell phone to make a long distance call as it is to make a long distance call using AT&T.
Telecommunications gained mainstream attention in the early 90’s; however the initial key market was business men and women, who used their phones whilst being on the move and so allowing them to communicate with their companies with ease. Though in the modern era, telecommunication went through segmentation in the market trends, and now in this day and age it would be difficult to find someone who does not own some form of mobile technology. Many phone providers battle to provide the best service for their customers (Figure 1).
This will give us the advantage of sending very large pieces of information over the phone line. The only thing that we do know about the telephone, is that it has come a long way since its first discovery by the inventor Alexander Graham Bell. A man who will always be remembered.
In the 1980s, first generation (1G) cell phones consisted of voice-only analog devices with limited range and features that were sold mainly in North America. In the 1990s, second generation (2G) devices consisted of voice/data digital cell phones with higher data transfer rates, expanded range, and more features. Sales of these devices expanded to Europe and Asia. In the twenty-first century, Nokia and other companies are combining several digital technologies into third generation (3G) communication devices that reach globally and feature the convergence of the cell phone, personal digital assistant (PDA), Internet services, and multimedia applications.
Farley, Tom. "Telephone History Part 3-1921 to 1984." n.pag. Online. Available: http://privateline.com/TelephoneHistory3/History3.html, Feb. 24, 1999.
Since its inception, the telephone has become one of the most important inventions of all time. Although some were skeptical about its replacement over telegrams, in the end the advent of this fine communication equipment has won the hearts of many. As a matter of fact, the telephone system had come to numerous facelifts that it literally connected the world before the internet was born. Because of its importance, homes and businesses can not live without it. In the U.S. alone, most if not all have a phone in the house.
Making a telephone call no longer should conjure up visions of operators connecting cables by hand or even of electrical signals causing relays to click into place and effect connections during dialing. The telephone system now is just a multilevel computer network with software switches in the network nodes to route calls get through much more quickly and reliably than they did in the past. A disadvantage is the potential for dramatic and widespread failures; for as has happened.