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Mobitex
Mobitex is an OSI based open standard, national public access wireless packet-switched data network. Mobitex puts great emphasis on safety and reliability with its use by military, police, firefighters and ambulance services. It was developed in the beginning of the 1980s by the Swedish Televerket Radio. From 1988 the development took place in Eritel, a joint-venture between Ericsson and Televerket, later on as an Ericsson subsidiary. Mobitex became operational in Sweden in 1986. In the mid-1990s Mobitex gained consumer popularity by providing two-way paging network services. It was the first wireless network to provide always on, wireless push email services such as RadioMail and Inter@ctive Paging. It is also used by the first model of Research in Motion's BlackBerry, and PDAs such as the Palm VII. During 9/11 and the 2005 hurricane rescue and clean-up operations, Mobitex proved itself to be a very reliable and useful system for first responders. Mobitex is a packet-swit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RadioMail
Mobitex is an OSI model, OSI based open standard, national public access WWAN, wireless packet-switched data network. Mobitex puts great emphasis on safety and reliability with its use by military, police, firefighters and ambulance services. It was developed in the beginning of the 1980s by the Swedish Televerket (Sweden), Televerket Radio. From 1988 the development took place in Eritel, a joint-venture between Ericsson and Televerket, later on as an Ericsson subsidiary. Mobitex became operational in Sweden in 1986. In the mid-1990s Mobitex gained consumer popularity by providing two-way communication, two-way paging (telecommunications), paging network services. It was the first wireless network to provide always on, wireless push email services such as RadioMail and Inter@ctive Paging. It is also used by the first model of Research in Motion, Research in Motion's BlackBerry, and Personal digital assistant, PDAs such as the Palm VII. During September 11, 2001 attacks, 9/11 and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research In Motion
BlackBerry Limited is a Canadian software company specializing in cybersecurity. Founded in 1984, it was originally known as Research In Motion (RIM). As RIM, it developed the BlackBerry brand of interactive pagers, smartphones, and tablets. It transitioned to a cybersecurity enterprise software and services company under Chief Executive Officer John S. Chen. Its products are used by various businesses, car manufacturers, and government agencies to prevent hacking and ransomware attacks. They include BlackBerry Cylance's artificial intelligence based cyber-security solutions, the BlackBerry AtHoc emergency communication system (ECS) platform; the QNX real-time operating system; and BlackBerry Enterprise Server (BlackBerry Unified Endpoint Manager), a Unified Endpoint Management (UEM) platform. BlackBerry was founded in 1984 as Research In Motion by Mike Lazaridis and Douglas Fregin. In 1992, Lazaridis hired Jim Balsillie, and Lazaridis and Balsillie served as co-CEOs until ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAM Mobile Data
RAM Mobile Data was founded by RAM Broadcasting Corporation as American Mobile Data Communications, Inc. in 1988.RAM Broadcasting Corporation was an owner of regional paging companies and cellular companie The name of the company was changed to Ram Mobile Data in 1989. RAM Mobile Data was the U.S. Operator of the Mobitex network. RAM Mobile Data was sold and renamed BellSouth Wireless Data in 1995 and later became Cingular Interactive when BellSouth and SBC Communications formed Cingular Wireless. The Mobitex division within Cingular Wireless was sold to an investment company in 2005 and became Velocita Wireless. Velocita Wireless was purchased by Sprint Nextel and became a Sprint Nextel Company in early 2006. Today RAM Mobile Data is the exclusive operator of Mobitex in the Netherlands. With headquarters in Utrecht (NL) and a daughter in Brussels (BE), they are running the entire Mobitex operations throughout the BeNeLux The Benelux Union ( nl, Benelux Unie; french: Union Be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbo Dispatch
Turbo Dispatch is a public domain standard for the electronic transfer of job details, initially using packet radio, but now also using the internet. It is used throughout the United Kingdom to pass the details of stranded motorists between all the major UK motoring organisations and their 400 plus vehicle recovery agents. In many cases it is also used by the vehicle recovery agent to pass the details to the attending recovery vehicle. History On 30 June 1994, a group of representatives from the UK seven major motoring organisations and the Institute of Vehicle Recovery were invited a meeting at Brooklands Museum. Brooklands Museum was chosen as the venue because the meeting's chairman Andy Lambert was involved with the museum, having transported the vast majority of the exhibits there, and could therefore show people items they would not normally get to see. He clearly hoped that this would be enough incentive to get ‘the clubs’ to sit-down in the same room together. It so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velocita Wireless
Velocita Wireless is a national wireless-telecommunications service provider that is based in Woodbridge, New Jersey, United States. Known by several names over the years, Velocita Wireless has been in existence for over 17 years as the operator of the Mobitex network in the United States. Previously known as Cingular Interactive, L.P., BellSouth Wireless Data and prior to that RAM Mobile Data, Velocita Wireless carved a market for itself with the acquisition of the Mobitex network from Cingular and rebranding itself overall as Velocita in 2004. History In 2001, the company's Mobitex network proved to be effective in communications in Manhattan during the September 11, 2001 terrorist attacks. Most other cellular and wireless telecommunications services were knocked-out or overloaded in New York City. The effectiveness of the network led to Velocita developing a small 'following' amongst emergency responders in the United States. In 2006, Velocita Wireless became a strategic buy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inter@ctive Paging
The Interactive Pager was an early messaging device created in 1996 by Research In Motion (the maker of Blackberries). It allowed people to send and receive messages through a wireless network, and it also had a traditional pager system. The Interactive Pager was named the Top Product of 1997 by Wireless for the Corporate User Magazine. Research In Motion, January 7, 1998, archived fro the original on 28 September 2007 The device is credited for rolling out then-new features such as |
Palm VII
The Palm VII was a personal digital assistant made by the Palm Computing division of 3Com. The device featured an antenna used for wireless data communication, a first for a Palm device. Connectivity was provided through the Mobitex network, under the now defunct Palm.net service. Web Clipping applications, also known as Palm Query Applications (PQAs) made use of the network to request and post web data. The devices also provided PQA developers with the user's position, in the form of a zipcode, making the Palm VII the first web-enabled Location-Based Services A location-based service (LBS) is a general term denoting software services which use geographic data and information to provide services or information to users. LBS can be used in a variety of contexts, such as health, indoor object search, ent ... mobile platform. The cost of service was $14.95 per month, and allowed a limited number of web pages to be viewed. The Palm VII was the most expensive Palm sold to date, wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ALOHAnet
ALOHAnet, also known as the ALOHA System, or simply ALOHA, was a pioneering computer networking system developed at the University of Hawaii. ALOHAnet became operational in June 1971, providing the first public demonstration of a wireless packet data network. ALOHA originally stood for Additive Links On-line Hawaii Area. The ALOHAnet used a new method of medium access, called ''ALOHA random access'', and experimental ultra high frequency (UHF) for its operation. In the 1970s ALOHA random access was employed in the nascent Ethernet cable based network and then in the Marisat (now Inmarsat) satellite network. In the early 1980s frequencies for mobile networks became available, and in 1985 frequencies suitable for what became known as Wi-Fi were allocated in the US. These regulatory developments made it possible to use the ALOHA random-access techniques in both Wi-Fi and in mobile telephone networks. ALOHA channels were used in a limited way in the 1980s in 1G mobile phones fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cingular
AT&T Mobility LLC, also known as AT&T Wireless and marketed as simply AT&T, is an American telecommunications company. It is a wholly owned subsidiary of AT&T Inc. and provides wireless services in the United States. AT&T Mobility is the third-largest wireless carrier in the United States, with 101.6 million subscribers as of the end of Q1 2022. The company is headquartered in Brookhaven, Georgia. Originally known as Cingular Wireless (a joint venture between SBC Communications and BellSouth) from 2000 to 2007, the company acquired the old AT&T Wireless in 2004; SBC later acquired the original AT&T and adopted its name. Cingular became wholly owned by AT&T in December 2006 as a result of AT&T's acquisition of BellSouth. In January 2007, Cingular confirmed it would rebrand itself under the AT&T name. Although the legal corporate name change occurred immediately, for both regulatory and brand-awareness reasons both brands were used in the company's signage and advertisin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BellSouth
BellSouth, LLC (stylized as ''BELLSOUTH'' and formerly known as BellSouth Corporation) was an American telecommunications holding company based in Atlanta, Georgia. BellSouth was one of the seven original Regional Bell Operating Companies after the U.S. Department of Justice forced the American Telephone & Telegraph Company to divest itself of its regional telephone companies on January 1, 1984. In a merger announced on March 5, 2006, and executed on December 29, 2006, AT&T Inc. (originally SBC Communications) acquired BellSouth for approximately $86 billion (1.325 shares of AT&T for each share of BellSouth). The merger also consolidated ownership of Cingular Wireless and Yellowpages.com, both of which were joint ventures between BellSouth and AT&T. With the merger completed, wireless services previously offered by Cingular Wireless were then offered under the AT&T name, and BellSouth Telecommunications (a subsidiary of Bell Operating Company) began doing business as AT&T Southe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Carrier
A common carrier in common law countries (corresponding to a public carrier in some civil law systems,Encyclopædia Britannica CD 2000 "Civil-law public carrier" from "carriage of goods" usually called simply a ''carrier'') is a person or company that transports goods or people for any person or company and is responsible for any possible loss of the goods during transport.Longman Business English Dictionary A common carrier offers its services to the general public under license or authority provided by a regulatory body, which has usually been granted "ministerial authority" by the legislation that created it. The regulatory body may create, interpret, and enforce its regulations upon the common carrier (subject to judicial review) with independence and finality as long as it acts within the bounds of the enabling legislation. A common carrier (also called a ''public carrier'' in British English) is distinguished from a contract carrier, which is a carrier that transports goo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minimum-shift Keying
In digital modulation, minimum-shift keying (MSK) is a type of continuous-phase frequency-shift keying that was developed in the late 1950s by Collins Radio employees Melvin L. Doelz and Earl T. Heald. Similar to OQPSK, MSK is encoded with bits alternating between quadrature components, with the Q component delayed by half the symbol period. However, instead of square pulses as OQPSK uses, MSK encodes each bit as a half sinusoid. This results in a constant-modulus signal (constant envelope signal), which reduces problems caused by non-linear distortion. In addition to being viewed as related to OQPSK, MSK can also be viewed as a continuous-phase frequency-shift keyed ( CPFSK) signal with a frequency separation of one-half the bit rate. In MSK the difference between the higher and lower frequency is identical to half the bit rate. Consequently, the waveforms used to represent a 0 and a 1 bit differ by exactly half a carrier period. Thus, the maximum frequency deviation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
