These connectionless networks provide access to wireless devices (computers, printers etc.). Wireless networking is a method by which homes, telecommunications networks and business installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations.
This reduces the amount of wired connection costs, adds convenience to business in house network. WiFi is often used by a business guest, in need of internet access.
Wireless services are the easier of the two (wired and wireless). By placing antennas throughout the facility computers can access network services.
They can be used to connect multi building campuses, that may too costly to bring to a wired network. Line of site dish antennas can be used to link multi buildings together.
There are range limitations, security limitations and access limitations. Range is 300 feet between IP wireless access points.