The Cdma Wireless Network - NETGEAR AirCard 597E User Manual

AirCard® 597E ExpressCard - User Guide
Note: More information about
CDMA networks is available on
the CDMA Development Group
www.cdg.org
web site,
Note: Most service providers
have coverage maps on their
web sites.
Note: The fee for service is
usually higher when you are
roaming (connecting to a
network other than the one
belonging to your service
provider).
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The CDMA wireless network

This is the worldwide infrastructure providing the radio
coverage that allows you to stay connected. Made up of radio
towers and a variety of network switches, routers, and servers,
the network is an interconnection of many service providers.
.
There are CDMA networks that operate in the frequency bands
supported by the AirCard ExpressCard throughout North
America and parts of Latin America, Asia, and New Zealand.
However, each service provider operates a network that covers
a limited geographical area within the overall CDMA coverage
area.
Most service providers have "roaming" agreements with other
service providers, so that they can offer service outside of the
coverage area of their own networks. For example, assuming
you live in Vancouver (Canada), and travel frequently to
Seattle (United States), you can obtain an account with a
Vancouver service provider that has a roaming agreement with
a service provider in Seattle. You would then have local service
in Vancouver, and roaming service in Seattle.
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