Previously, WAN support was a service that was only offered to large companies to recover from very serious failures. It was very expensive and only served to recover critical data.
However, today, almost all companies (regardless of their size or field of activity) need to have a failure recovery system to stay connected. Not having WAN support means losing connections between offices, customers and suppliers.
Not only does data transmission fail, but telephony over IP (ToIP) also stops working. For many years, the option that was proposed was to hire a second operator to enjoy a double fixed line installation as a measure of resistance to failures.
However, this solution was very expensive because the wiring of the alternative fixed line had to be installed and the expenses associated with it had to be paid. The real alternative came with the implementation of the 3G mobile network and, later, with the 4G / LTE networks.
Industrial 4g routers have been widely used in the M2M industry in the IoT industry chain, such as smart grid, intelligent transportation, smart home, finance, mobile POS terminals, supply chain automation, industrial automation, intelligent building, fire protection, public safety, environmental protection, weather , digital medical, remote sensing, military, space exploration, agriculture, forestry, water, coal, petrochemical and other fields.
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