Mobitex Network Architecture

Mobitex Network Architecture: "The MOBITEX architecture was originally developed by Swedish Telecom, now called Telia Mobitel, as a private mobile alarm system used by field personnel. However, mainly for economical reasons, it evolved into a public mobile radio service. Continuing development has been done by Eritel AB under the guidance of the MOA and Ericsson Mobile Communications AB. Commercial operation was introduced in Sweden in 1986; since then, a number of networks have been constructed in Europe, the United States, and Australia. Only the radio frequency differs, depending on the country: 900 MHz is used mainly in the United States and Canada; most other countries operate in the 450 MHz range. In the rest of this section the main functional elements of the MOBITEX network and the interfaces between these elements are defined. "