DTMF
tones
Dual-tone multifrequency
tones. The DTMF system is
used by touch-tone
telephones. DTMF assigns a
specific frequency, or tone,
to each key so that it can
easily be identified by a
microprocessor. DTMF tones
allow you to communicate
with voice mailboxes,
computerised telephony
systems, and so on.
EAP Extensible authentication
protocol. EAP plug-ins are
used in wireless networks
to authenticate wireless
devices and authentication
servers.
EGPRS Enhanced GPRS. EGPRS is
similar to GPRS, but it
enables faster connection.
For availability and data
transfer speed, contact your
service provider.
GPRS General packet radio
service. GPRS enables
wireless access for mobile
phones to data networks
(network service). GPRS
uses packet data
technology where
information is sent in short
bursts of data over the
mobile network. The
benefit of sending data in
packets is that the network
is occupied only when
sending or receiving data.
As GPRS uses the network
efficiently, it allows for
quick data connection setup
and fast data transmission
speeds.
You must subscribe to the
GPRS service. For availability
and subscription to GPRS,
contact your service
provider.
During a voice call, you
cannot establish a GPRS
connection, and any
existing GPRS connection is
put on hold unless the
network supports dual
transfer mode.
GPS Global positioning system.
GPS is a worldwide radio
navigation system.
172 Glossary
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