At this age may be said that rely heavily on technology. Every day people doing well due to the help of technology. In conducting activities, certainly requires communication. Today,human made communications conducting by telephone.But in the office for example, through a telephone connection has not been effective enough and people need a new technology called wireless intercom system . Whether it is wireless intercom system or wireless doorbell?. It is a device that allows electronic devices telephone connection in a network between room to room and from one building to another buiding.
There are two ways for wireless intercom system can working. The first way, through the air waves with air freqeuntion given special permission by the government and that the second way is to utilize the electrical performance in office. Basically the intercom is a technology that has much power as far as 304.8 m or 1000 feet .Wireless intercom system is very effective due to related some other people who you dont want to speak to and you just can simply press a buttonin your wireless intercom system and your communication with others can run smoothly. When we when we discuss the frequencies that can be used by the wireless intercom system, then the most that can be worn around wireless
intercom sytem in the USA or Canada among others are 49MHz, FM band (200KH – 270KHz), 900MHz, 2.4GHz, 5.8GHz, and in the United States alone, Murs (150 MHz).