Wired Vs. Wireless
One reason to use a wireless intercom system is that the cost of retrofitting a building for a wired intercom system is high. Another reason is the increased portability of a wireless system. With battery-powered radio frequency wireless intercom units, a person can carry a station as they walk around.
One of the challenges of a wireless system is the possibility of interference. Radio frequency wireless systems may get interference from other wireless devices. Some wireless intercom designs reduce this interference by using "digital spread spectrum".
Read more about this topic: Wireless Intercom
Famous quotes containing the word wired:
“And these poor nerves so wired to the skull
Ache on the lovelorn paper....”
—Dylan Thomas (1914–1953)