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SMS
Short Messaging Service. Short text messages of generally no more than 140-160 characters sent and received by
wireless devices.
VPN
Virtual Private Network. A way to communicate through a dedicated server securely to a corporate network over the
Internet.
WAN
Wide Area Network (WAN). A computer network covering a broad geographical area. WANs are used to connect local
area networks (LANs) together, so that users and computers in one location can communicate with users and
computers in other locations.
WWAN
Wireless Wide Area Network (WWAN). Also called "wireless broadband" or "broadband wireless," wireless WANs
(WWANs) use cellular towers to transmit a wireless signal over a range of several miles to a mobile device compared to
wireless Wi-Fi LANs (WLANs), which span only a few hundred feet and generally to only stationary devices.
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PC770 Card Product User Guide
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