How Do Cordless Phones Work?

A cordless phone is a communication devicebut they require a connection with a local wired
comprised of a base station and a cordlessservice instead of mobile phone network, and do
receiver. This device is connected to a landlineneed to plug into a wireless access point, such as
(POTS) and operates up to (typically) one hundreda base station. Using electromagnetic waves,
feet from the base station. Cordless phoneswireless phones work on a 2.4 GHz frequency
serve the convenience of not being restricted byband via digital technologies or 802.11a/b/g
the tangle of a phone cord.standards-based wireless LAN technology. The
As for power, cordless phones are unlike regulardifference between wireless phones and cordless
telephones in that they require household mainsphones, however, is that wireless phones are
electricity. The cordless phone receiver isinitiated by connecting to the public switched
powered by a rechargeable battery when restingtelephony network (PSTN) via a call management
in its base station.function. Base stations may or may not have the
Cordless phones use seven frequency bands thatcapability of performing this connection. Most
have been allocated by the Federal Tradedigital systems associated with wireless phones
Commission:have encryption incorporated into its
·1.7 MHzprogramming, so privacy is usually an expected
·27 MHz (allocated in 1980)and guaranteed feature.
·43-50 MHz (allocated in 1986)As the progenitor to cell phones, cordless phones
·900 MHz (902-928 MHz) (allocated in 1990)are a more convenient form of modern
·1.9 GHz (1920-1930 MHz) (allocated incommunicative technology than standard or
October 2005)conventional telephones. These portable devices
·2.4 GHz (allocated in 1998)are easy to set up, simple to use, inexpensive (or
·5.8 GHz (allocated in 2003)at least affordable), and include multiple
Of those listed, the 900 MHz, 2.4 GHz, and 5.8"user-friendly" features, such as privacy
GHz bands are used by all phones, includingencryption and distinctive ringing. It's no wonder
cordless phones, in the United States.why cordless phones are so popular and
Wireless Phonescommonly used today!
Wireless phones are similar to cordless phones,