Sierra Wireless RAVEN 1X 20070914 - Manual (Page 22)

Introduction to the Raven
Rev 3.0B Feb.08 17
address for your modem, you can use a Dynamic DNS service
(such as IP Manager) to translate your IP address into to a
domain name.
Caution: If you want to connect remotely to your Raven using TCP/
IP, the IP address given to your modem by Sprint cannot be a private
or internal IP address (such as Data Link) unless you are on the same
network or inside that network’s firewall (such as with frame relay).
1x Communication
CDMA (Code Division Multiple Access) is the underlying
digital radio network technology used by many cellular
providers across the globe and is prevalent in North America.
1x provides a digital cellular telephony system and can
provide wireless Internet access at speeds between 60 and 80
kbps, with bursts up to 144 kbps.
Security
1x data transmissions are highly secure. Originally developed
based upon the “spread spectrum” pioneered by the US
Department of Defense, security in CDMA technologies is
obtained by spreading the digital information contained in a
particular signal of interest over multiple coded paths, over a
much greater bandwidth than the original signal.