How a Satellite Phone Works When Other Phones Stopped Working
After 9/11 we realize how a few terrorist can turn our world upside down and
leave us with the feeling of how vulnerable we can be. When the twin towers
were hit the landline and cellular systems in New York where overloaded or
disrupted. People in New York had a difficult time calling out to family
and friends to let them know they where OK. People calling into New York
had problems getting through because most of the circuits where busy. After
this terrible act of terrorism numerous government agencies realize it was
necessary to have emergency back up communications in the form of satellite
phones which do not rely on local phone systems. A number of Federal
Agencies soon started purchasing satellite phones for emergency
communication backup. These agencies purchased both Fixed Site Satellite
Phones for their buildings and hand held Globalstar satellite phones for key
individuals in the field. These satellite phones allowed them to have voice
and data communications in the event the local landline and cellular systems
are disrupted. A satellite phone may be your only form of communication
when the telephone infrastructure either cannot handle the volume of calls
or is damaged.
When the telephone infrastructure is damaged as with the case of the
numerous hurricanes that hit Florida in 2004 satellite phones filled the
communication void left after the storms hit. Cellular and landline systems
were damaged for weeks after each hurricane hit which delayed clean up and
repair efforts. Government agencies, insurance adjusters, and business all
benefited from the purchase or rental satellite phones from GlobalCom. The
satellite phone allowed simple to use voice and data communication in a hand
held device when all other forms of communication would be disrupted for
weeks. During this period GlobalCom was one of the largest providers of
satellite phones to the state of Florida.
The reason satellite phones from GlobalCom work when all other phones have
stopped working is that a satellite phone does not rely on the local
telephone infrastructure to function. When you use the Globalstar phone the
call goes up to the Globalstar constellation made up of forty-eight
satellites and is relayed by up to four satellites back down a Globalstar
gateway. The gateway sends the call to its call destination by landline and
cellular networks. One of the main Globalstar gateways that serve the
United States is located in Clifton, Texas.
Some may question well what if I am in an area where there is no
communication and I need to contact someone locally? In that case the
person you need to contact locally would need a satellite phone. The way it
would work with our phone the call goes up from the
satellite phone hand set up to the Globalstar satellite phone constellation
then down to one of the Globalstar ground stations it then is sent back up
to the constellation and then the inbound call
goes back down to the other phone receiving the call. When
calling from phone to phone using the same gateway
Globalstar does not utilize landline or cellular systems the call is handled
all through the Globalstar ground station.
In event of an emergency a satellite phone is a valuable asset and could
mean the difference between life and death where communication is critical.
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