History Of Cellphone Technology Content Provided By: Kara Cullen

The origin of the text messaging services in GSM lies in the historical development of telecommunication services, and SMS was created by a small group of persons. The work on the standardization of services and the technical realization was approved by the CEPT Groupe Spécial Mobile.

Text messaging was a known telecommunications service years before the development of GSM started in 1982. Proposals for text messaging as a service in GSM were made by Nordic, German and French operators, who were all co-operating in the task.

The Nordic operators focused their work on text messaging by using an access to a message handling system, a service similar to e-mail. This service was standardized by the GSM committee and led to a technical report on the technical realization of the access to Message Handling Systems.

The German and French operators focused their work on 'Short Message Transmission'. This service uses a dedicated service centre and transmits the text messages over existing signalling paths of the GSM telephony system on a lower priority basis. This transmission method obviously constrains the message to be short: the maximum length, initially estimated as 128 octets, later optimised to 160 characters, is still sufficiently long for most personal or professional purposes.

The first phase of work, from February 1985 to the end of 1986, saw the GSM committee specifying the service features of SMS, with most contributions coming from Germany and France. From 1987 onwards the technical realization of SMS was standardized in a small group called Drafting Group Message Handling. The first Chairman of this group and the editor of the key technical specification were provided by Norway (later replaced by the UK), and technical work was mostly provided by Finland, France, Norway, and the UK. The first phase of the SMS specifications comprised items that included service definition, network architecture, topology and protocols, acknowledgement capabilities, functionality for alerting on messages waiting, time stamping and capabilities of identifying application protocols.

The further evolution of the SMS was standardized in the same small group, led by the UK (where the technical work was mostly provided by the UK). Examples of enhancements from this period are automatic replacement of messages, so-called 'flash SMS' and voicemail icons, followed by colour and picture capabilities, and long SMS.

SMS has become a phenomenal success that has been a surprise to many both inside and outside the communications industry.

  Something better — cellular telephone service — had been conceived in 1947 by D.H.

The FCC actually starts to encourage cell phone companies to push forward the “cellular idea”. But unfortunately a law suit arises with Western Electric, who is the closest company to succeeding at the time, and it rules that they are not allowed to manufacture terminal and network phone systems under the same roof. This is an effort to prevent a monopoly. But it also prevents progress.

continentalcellular - Local Phone Repair for Omaha.

1948 wireless telephone service was available in almost 100 cities and highway corridors. 1947 cellular telephone service conceived by D.H.

Finally cell phone testing is permitted by the FCC in Chicago. The Bell Telephone Company gets the license; they are in a partnership with AT&T which is a gerneral effort to battle the stubborn FCC.

Engineers at Bell Labs develop the concept of cellular technology.

During this time, the technology for cell phones had been developed but it was only in 1971 when there was a request for cellular service. AT&T submitted a request public cellular service to the FCC in 1982. The request was processed almost after a decade. Frequencies of 824 to 894 MHz Band to the AMPS (Advanced Mobile Phone Services) were made possible. Cell phones had analog service since 1982 to 1990. In 1990, AMPS turned digital and went online.

Cellular Phones & Mobile Phones - History and Technology

The above limitation of distance was resolved by an engineer at Bell Labs. Amos Edward Joel discovered and developed what he termed as the handoff system. This kind of technology enabled to continue the call from one area to the next and the call would not get dropped. The cell areas for the cell phone users weren’t restricted anymore; the user could freely roam across cell areas without disruption in their calls.

History of the Telephone - ITPA

The electronic components used in cell phones of today’s generation were first developed in the 1960s. During this time, the technology of cell phone was already available. The problem that persisted during that time was the user was restricted to a certain block of areas, which were called cell areas. Cell areas were base stations covering a small land area. If the cell phone user traveled beyond the boundaries of the cell area, the user wouldn’t get signal or receive transmitted messages. There were instances when a call could still be made but the call would be cut once a set range has been reached.

History of mobile phones - Wikipedia

Rising from this type of communication technology, the evolution of modern cellular phones began. A communication architecture of Hexagonal Cells was created for cell phones by D. H. Ring, of Bell Labs, in 1947. An engineer from Bell Labs discovered cell towers which had the capability to not only transmit but to also receive the signals in three different directions. Before this discovery, the cell phones only worked in two directions and through an antenna.