GSM Cell Phones - What You Wanted To Ask But Always Slipped Out Of Your Mind...
GSM stands for Global System for Mobile communication. GSM cell
phones come with integrated voice mail, high-speed data, fax,
paging and Short Messaging Services. Excellent sound quality,
International Roaming facility with state of the art call
privacy and fraud prevention features, and batteries with
increased shelf life have made GSM the fastest growing and most
affordable wireless voice technology in the world.
You can use your GSM enabled mobile anywhere. Well, almost
anywhere in the world. GSM technology ensures that you can hear
your boss screaming as clearly as the living daylights even when
he is on the other side of Atlantic. However, to be able to
listen to that honeyed cheer upper you need to change your
frequency band. GSM cell phones use the multiple spectrum
frequency bands under which 1900 MHz caters to North America
while 900 MHz and 1800 MHz are used for other locations. A GSM
mobile may have a dual band, a tri band or even a quad band.
A dual band GSM functions at both the 900 MHz and the 1800 MHz
level and works in Europe, Africa, Asia, Australia, New Zealand
and a small portion of South America. A tri band GSM cell phone
catches the 1900 MHz in addition to the other two wavelengths
and covers North America instead of South. Similarly, a quad
mobile covers the 850 MHz as well as the other 3 and allows you
to go global.
A GSM cell phone however is not going to work without a SIM
card. In fact, your phone number depends on your SIM. Voicemail,
a regular feature of all
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GSM enabled mobiles, too, is dependent
on the SIM, as it is a network operator based service. To make
an overseas call from a GSM phone you must first check on the
frequencies available and make the necessary adjustments. This
may sound inane but actually is a common mistake occurring all
the time.
An overseas call from a GSM cell phone is a simple operation
provided the correct protocol is maintained. The international
access code (+) has to be dialed first, followed by the country
code and the ten-digit phone number. The (+) sign takes care of
your call without bothering you about the access code of the
country you are calling from. If your handset is a Nokia then
you have to press the (*) key twice in rapid succession to
access the international access code (+). If it is an Ericsson,
then you have to press and hold the 0 key until the (+) sign
appears. Like wise for Motorola and Samsung. If it is a Bosch
then you have to press and hold the (*) key until the (+) sign
appears.
GSM cell phones have managed to reduce background noises,
disturbances and statics to a minimum level. Cross-connections,
too, almost never happens. The facility to handle many calls at
the same time translates to a congestion free network in areas
of heavy density and high usage. All these at minimum cost. GSM
is affordable.
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