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