Cordless
telephones provide secure and reliable voice communication
with the portability and versatility that you cant
get with a corded phone. With new improvements in technology,
the sound and security of cordless telephones now rival
those of corded phones.
There
are many cordless telephone options available today with
varying technology, styling and features. Determining
the right phone for you depends on how you want to use
it and the environment you live in. Criteria to consider
include:
FREQUENCY
Cordless phones operate on various radio frequencies,
which are set by the Federal Communications Commission
(FCC).
The
three most common frequencies today are 900MHz, 2.4GHz
and 5.8GHz:
900
MHz Currently the most common frequency for cordless
phones, 900MHz phones may offer a greater range than other
frequencies. However, the 900MHz spectrum is cluttered
and may result in interference with baby monitors and
other 900MHz cordless phones. Radio scanners can also
easily pick up this band.
2.4 GHz 2.4GHz phones offer better clarity and
security than 900MHz, but may experience some interference
with microwave ovens and wireless networking (wi-fi) products.
5.8 GHz The most advanced cordless phones available,
5.8GHz phones transmit on a new, open frequency and have
the least chance for interference. They will not interfere
with wireless networking (wi-fi) products.
Note: Many people equate a higher cordless phone frequency
with a better range. However, range for a cordless phone
is difficult to quantify because it ultimately depends
on the environment in which the phone is being used and
potential interference from other electronic devices.

ANALOG
vs. DIGITAL
Cordless phones can operate with analog or digital technology.
Analog
technology is common in cordless telephones, especially
in inexpensive models. Analog signals tend to be more
noisy or prone to interference with respect to sound quality.
In addition, analog signals are easily picked up and interpreted
by radio scanners.
Digital technology allows phone signals to sound clearer
and also offers significantly increased security.
Digital Spread Spectrum (DSS or FHSS) technology enables
voice data to frequency hop, or transmit in
pieces over several frequencies between the receiver and
the base, making it almost impossible to eavesdrop on
cordless phone conversations.
KEY
FEATURES TO CONSIDER
When purchasing your next cordless phone, look for the
four most requested features built into cordless phones
today.
Battery
Life All cordless phone handsets have a rechargeable
battery (i.e. nickel-cadmium, nickel-metal hydride, lithium).
Nickel-cadmium batteries are subject to a memory effect.
Nickel-metal hydride and lithium batteries have no memory
effect. Battery life depends on the type of battery and
the transmitting power of the handset. Battery life usually
ranges from 2-7 hours of continuous talking or 4-7 days
on standby.
Cordless Phone Features Cordless phones have evolved
extensively in both design and features. In response to
consumer demand, many cordless telephones today are equipped
with cell-phone like styling and features.
Basic
Cordless Features Include: