In later years, the main challenges were laid in the development of interoperable standards and coping with the explosive success and ever-increasing demand for bandwidth and reliability. Mobile telephony has a long history that started off with experiments of communications from and to moving vehicles rather than handheld devices. Most phones today rely on 3G or 4G mobile technology. These early mobile phones are often referred to as 0G mobile phones or Zero Generation mobile phones. Motorola, on 3 April 1973 were the first company to mass produce the first handheld mobile phone. Instead of relying on base stations with separate cells (and the signal being passed from one cell to another), the first mobile phone networks involved one very powerful base station covering a much wider area. They were two-way radios that allowed people like taxi drivers and the emergency services to communicate. The very first mobile phones were not really mobile phones at all. Mobile phones were invented as early as the 1940s when engineers working at AT&T developed cells for mobile phone base stations. However, you might not know that the history of mobile phones actually goes all the way back to 1908 when a US Patent was issued in Kentucky for a wireless telephone. Mobile phones, in particular smartphones, have become our inseparable companions.
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