| In 1946, the first mobile phone was used by the | | | | enhanced. The approval took for about 10 years. |
| Swedish police. The innovation was linked to the | | | | FCC be found the Frequency band of 824 to 894 |
| network of telephone and it was typical of a two way | | | | MHz into AMPS (Advanced Mobile Phone Service). |
| technology of radio. This phone is not convenient | | | | |
| where it was able to make about 6 calls only before | | | | For about decades, technologies made for mobile |
| the battery was off. | | | | phones existed in the market. These mobile phones |
| | | | | were installed in cars due to the heavy and large |
| In 1947, Ring from the Bell Labs created the innovation | | | | requirement of battery. At around 1950's, the Mobile |
| of modern phones was by the hexagonal cells for the | | | | Telephone System A (MTA) was developed by the |
| phones then later another from the lab visualized cell | | | | Erikson but it weighed about eighty pound, then later on |
| towers where it receive and transmit signals in about 3 | | | | improved into a range of 20 pound and still it is |
| antenna directions compared to the 2 antenna | | | | inefficient for a practical device that most of the |
| directions. Moreover, even though several technologies | | | | people use today. |
| are being enhanced, developments of electronics | | | | |
| would take so many years to make it matured and | | | | Throughout the decades, there have been many |
| developed. | | | | technologies that existed that made mobile phones |
| | | | | available. Most of the time, these phones were installed |
| In 1967, technology of mobile phones was already | | | | in vehicles due to the large battery requirements. For |
| available but the users and consumers have to stay | | | | instance, the MTA (Mobile Telephone System A) |
| on a cell area. These cell areas that are services using | | | | developed by Eriksson was available in Sweden in |
| a station of base are not hand off phone calls in a | | | | 1950's. Unfortunately, it weighed over 80 pounds, later |
| base to the other basis. While one is having a call | | | | versions however weighed around the 20 pound |
| transaction you can no longer to continue it after | | | | range, still making it ineffective for truly portable |
| reaching a particular range. | | | | devices that are used today. |
| | | | | |
| A. E. Joel, an engineer at the Bell labs, enhanced the | | | | The first generation of cellular phones was made in |
| handoff call system in the year 1967. Handoff call | | | | 1983. Motorola, called Motorola DynaTAC 8000X, |
| system provides the continuity of the calls from a | | | | was introduced to be the very first portable cell |
| place to the other without having dropped calls. | | | | phones. The FCC approved it to use in the US. It took |
| | | | | for about 15 years in the market having over a |
| In 1971, the AT&T requested cellular service to the | | | | hundred million of dollars expense. |
| FCC while the innovation of technology had been | | | | |