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It's important to note that while there
is one standard for analog technology,
there are different variations on
digital technology. These variations are
primarily based on the way information
is transmitted. The most common digital
technologies include: |
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PCS (Personal Communication System)
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Offers advanced features and sound
quality |
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Coverage only available in some parts of
the country |
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Often offered by national cellular
carriers with nationwide rate plans |
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Requires a PCS phone |
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TDMA (Time Division Multiple Access)
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One of the most common digital
communication technologies. It divides a
sequence of conversations into packets
of data according to time. |
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Offered in several bandwidths, typically
800 MHz and1900 MHz |
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Requires a TDMA phone |
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CDMA (Code Division Multiple Access)
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Another popular digital technology that
separates communications by code |
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Also offered in several bandwidths,
typically 800MHz and 1900 MHz |
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Requires a CDMA phone |
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GSM (Global System for Mobile
Communication ) |
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The most widely used digital technology
in Europe, Middle East, and Asia.
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A rapidly expanding technology in North
America. |
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Offered in 1900 MHz in the US, Canada
and Latin America. Also offered in 900
MHz in parts of Latin America.
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Different service providers in the same
region may use different digital
technologies, thus, a phone that works
on one type of digital network may not
work on another. It's important to
always check that compatible service for
a wireless phone is available in your
area before you buy it. |
