Sierra Wireless RAVEN 20070914 - Manual (Page 21)

Introduction to the Raven
Rev 3.0B Feb.08 16
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 TELUS cannot be a private
or internal IP address (such asspecial private network) 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.