What is Carrier Network Infrastructure?

CNI stands for Carrier Network Infrastructure. CNI is the physical infrastructure used to pass data between locations.

It includes phone cable and fiber lines. It also includes satellite, radio, and microwave transmissions. Each of these media has different effects on services such as VoIP.

Phone, cable, and fiber have wires in the ground, or attached to telephone poles. This makes their signal more stable, but costs more to implement.

Wireless communications are subject to weather, and other interruptions. This makes them less reliable, but cheaper and able to provide a longer range in locations where running cable doesn’t make sense.