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Unique Airtime services supplied by AST Connections |
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Inmarsat operates a constellation of geostationary satellites
that extend mobile phone, fax and data communications to every
part of the world, except the poles. End-users can dial
into the international telephone network and send data over the
Internet at any time, simply by connecting to an Inmarsat satellite.
They include shipowners and managers, TV broadcasters, international
aid workers, national governments, commercial airlines, banks,
other financial institutions, and many others.
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The BGAN service
BGAN (Broadband Global Area Network). The first new service launched
on the Inmarsat-4 satellites. BGAN is the world's first mobile
communications service to deliver broadband data and voice, simultaneously,
through a single, truly portable device, anywhere on the planet.
It is also the first mobile communications service to offer guaranteed
data rates on demand.
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The Iridium Satellite System is the only provider of
truly global, truly mobile satellite voice and data solutions with
complete coverage of the Earth (including oceans, airways and Polar
regions). Through a constellation of 66 low-earth orbiting (LEO)
satellites, Iridium delivers essential communications services to
and from remote areas where terrestrial communications are not available.
The service is ideally suited for industrial applications such as
heavy construction, defence/military, emergency services, maritime,
mining, forestry, oil and gas and aviation. Iridium currently provides
services to the United States Department of Defence and launched
commercial service in March 2001. |
Thuraya's system has been adapted for efficient operation in both
satellite and GSM environments. It provides high flexibility in
managing network resources through a re-programmable satellite payload.
This supports modifications to the system’s coverage area
even in the post-launch period and optimises performance over high
demand areas. Thuraya’s satellites have been specially
designed to achieve network capacity of about 13,750 telephone channels.
Thuraya’s hand held mobile terminals are comparable to GSM
handsets in terms of size and appearance, as well as in voice quality. |
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Globalstar, which was established in 1991 and began commercial service
in late 1999, currently offers service from virtually anywhere across
over 100 countries, as well as from most territorial waters and
several mid-ocean regions. Signals from a Globalstar phone or modem
are received by the company's constellation of 48 Low Earth Orbiting
(LEO) satellites and relayed to ground-based gateways, which then
pass the call on to the terrestrial telephone network.
As a result, Globalstar is able to provide a variety of telephone
services to users who live, work, and travel in areas far beyond
the reach of cellular networks. In addition to normal voice communications.
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The ACeS coverage area is over 11 million square miles extending
from Pakistan and India in the west, to the Philippines and Papua
New Guinea in the east, and from Japan and China in the north
down to Indonesia in the south. These countries have a
combined population of approximately three billion people, the
majority of whom are currently underserved by telecommunication
services. ACeS will help satisfy this demand, supporting services
and providing terminals, which are low in cost. Focusing on the
needs of the Asian market, ACeS coverage specifically serves regional
needs and complements the existing telecommunication infrastructure
system.
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