Wireless intercom  From Wikipedia, the free encyclopedia Jump
to: navigation, search  A wireless intercom is a
telecommunications device that enables voice communication
without the need to run copper wires between intercom stations.
A wired intercom system may incorporate wireless elements.
There are many types of wireless intercom systems on the market.
Most wireless intercom systems communicate by radio waves using
one of the frequencies allotted by various government agencies.
Some wireless intercom systems communicate using the 802.11
standard.[1] There are also systems that advertise themselves as
wireless, but communicate over existing building AC electrical
wiring.  Basic terms[edit]    • Station - A wireless intercom
unit.   • Outdoor Intercom - This is an intercom that can be
placed by a building's doors and it operates like a doorbell,
but people inside can talk to the visitor.   • Channels - Some
wireless intercom systems have more than one channel so private
conversations can occur between group