If you wondered how mobile phones appeared, you should know that everything began with the mobile rigs or the very early two-way radios. They were used in taxicabs, police cruisers, and ambulances but they could not actually be called mobile phones due to normal lacking connectivity to a telephone network and to the absent possibility of dialing phone numbers from the vehicles. This happened mainly before World War II and it became characteristic for a certain community of mobile radio users, also known as mobileers. Due to these users, the technology used grew quite popular and the result was the development of a genuine mobile phone technology. In the beginning, mobile two-way radios were permanently installed in vehicles but with time new versions emerged, such as the so-called transportables or bag phones, equipped with a cigarette lighter plug and easier to carry. These devices could be used as mobile or portable two-ways radios.
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