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The Globalstar system is designed to provide high quality satellite-based
telephony services to a broad range of users. Globalstar meets the needs
of cellular users who roam outside of coverage areas and people who work
in remote areas where terrestrial systems do not exist. Residents of under-served
markets can use Globalstar fixed-site phones to satisfy their needs for
basic telephony while travelers can have reliable communications.
Globalstar phones look and act like mobile or fixed phones with which
you're familiar. The difference is that Globalstar extends your coverage
area beyond existing phone networks, carrying your call over an exceptionally
clear, secure Code Divisional Multiple Access (CDMA) satellite signal.
To listen to a clear, digital satellite call, dial 925-988-4585.
Like "bent-pipes", or mirrors in the sky, the Globalstar constellation
of 48 Low-Earth Orbiting (LEO) satellites picks up signals from over 80%
of the Earth's surface, (excepting the extreme Polar Regions and some
mid-ocean regions). Several satellites pick up a call, and this "path
diversity" reduces the possibility of blocked or dropped calls. If buildings
or terrain obstruct the phone's line-of-sight to a satellite, a "soft
hand-off" takes place switching the call to an alternate satellite
with no interruption. This satellite now continues transmission of the
original signal to one of several terrestrial "gateways".
With Globalstar, you'll have the additional advantages of using low-earth
orbiting satellites with no perceptible voice delay and lighter/smaller
all-in-one handsets.
Gateways process calls, then distribute them to existing fixed and cellular
local networks. Terrestrial gateways are an important part of Globalstar's
strategy to keep key technology and equipment easily accessible and to
integrate our services as closely as possible with existing local telephony
networks. This design makes the Globalstar system and its services simple
to manage, expand and improve.
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