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Telecommunication is the transmission of information, over significant distances, for the purpose of communication. In earlier times, telecommunications involved the use of visual signals, such as beacons, smoke, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded drumbeats, lung-blown horns, or sent by loud whistles, for example. In the modern age of electricity and electronics, telecommunications now also includes the use of electrical devices such as telegraphs, telephones, and teletypes, the use of radio and microwave communications, as well as fiber optics and their associated electronics, plus the use of the orbiting satellites and the Internet.
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PR: 6
| Telecommunications Online Technology and business publication for communication professionals, covering service provider technologies and applications worldwide. - Read more http://www.telecommagazine.com |
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PR: 6
| TeleCommunication Systems - TCS Supplies messaging and location technology to wireless carriers, including software and services. - Read more http://www.telecomsys.com |
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PR: 6
| AAPT Broadband Bundles & Deals Today, AAPT has a four per cent share of Australia's $32 billion telecommunications market. We are one of only three Australian telecommunications providers to own and operate its own national voice and data network. - Read more http://www.aapt.com.au/ |
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PR: 5
| Online shop prepaid cell phone card to Australia In our online shop you can buy prepaid telephone cards for international calls. With our service you can choose the cheapest phone card. You just need to specify the distance of your call and we pick up your phone card on a best rate. We hope you will be satisfied with our services and we have yet to come. - Read more http://www.phonecardstock.com/ |
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PR: 5
| Business Telecoms Opal offer products and services to enhance your business communications and business telecoms. - Read more http://www.opal.co.uk/ |
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PR: 5
| AT&T international phone to phone call from Sweden On our site you can buy telephone cards for international calls. There are many different types of cards. Our service will help you pick the most advantageous course for long-distance call. Buy a telephone card is very easy. After selecting a card and you will receive payment pin code on your email. - Read more http://www.phocard.com/ |
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PR: 5
| Store cheap prepaid phone cards from South America We are offers a variety of high quality international calling cards and prepaid phone cards that can be used all over the world for domestic and long distance calls anytime from your home. Prepaid International Phone Card is dedicated to provide long distance phone card services like international calling cards and prepaid phone cards with crisp, clear connections and automatic search. - Read more http://www.phones-cards.com/ |
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PR: 5
| Sustainability Solutions Advantage IQ offers comprehensive corporate expense management services to businesses looking for outsourcing bill payment, telecom management, telecom bill audit and savings in their daily energy usage. - Read more http://www.advantageiq.com/ |
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PR: 5
| ADTRAN Networking And Communications Leading global provider of networking and communications equipment. - Read more http://www.adtran.com/ |
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PR: 5
| Vocera Hospital Communication Supplies wireless communications systems providing instant voice access to staff and at the point of service throughout an 802.11b/g network. - Read more http://www.vocera.com |
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