Quick definition: Core networks facilitate critical operations for telecommunications services including authentication, policy enforcement, billing, data routing, and more. Without a core network, a telecommunications provider cannot deliver cellular service, and devices cannot connect to each other or other network entities.
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What Is Network Redundancy?
In common usage, “redundancy” isn’t necessarily a good thing. It means something isn’t needed. But in engineering, redundancy is critical—a redundant component or function serves as a backup in case something crucial fails, so the system can continue operating or quickly be restored.
Network Selection Explained
By default, cellular devices connect to “home” network of the provider that issued their SIM cards. Cellular connectivity providers also have strict agreements with other operators in countries their network doesn’t cover, so whenever your device is outside its home network, the SIM card will connect your device to your provider’s preferred partner. (This is what’s known as “steered roaming.”)
What Is IoT Connectivity: A Comparison Guide
Connectivity is a critical component of the Internet of Things. IoT devices rely on networks to communicate with gateways, applications, servers, routers, and other IoT devices. This communication—transmitting and receiving data—enables IoT devices to perform the functions they were designed for.