80
UM150 User’s Manual
80
UM150 User’s Manual
TCP/IP
Transmission Control Protocol / Internet Protocol
UMTS
Wideband CDMA (WCDMA) is an approved 3G standard that uses 5 MHz channels
for both voice and data, offering excellent voice capacity and a peak data rate of
384 Kbps. NTT DoCoMo launched the first WCDMA service in 2001 and now has
millions of 3G subscribers.
URL
Uniform Resource Locator
USB
Universal Serial Bus. A connection type for computer peripherals such as a printer,
mobile phone, etc.
VPN
Virtual Private Network. A way to communicate through a dedicated server securely
to a corporate network over the Internet.
VZGlobal
The GlobalAccess connection made when in GPRS/UMTS coverage.
WAN
Wide Area Network. A network which uses common carrier-provided lines.
Contrasts with LAN.
WCDMA
Wideband Code Division Multiple Access. Wideband CDMA is a third generation
(3G) wireless standard which utilizes one 5 MHz channel for both voice and data,
initially offering data speeds up to 384 Kbps. WCDMA is also referred to as UMTS
- the two terms have become interchangeable. WCDMA is the 3G standard that
most GSM carriers are moving to. Parts of the WCDMA standard are based on
GSM technology. WCDMA networks are designed to integrate with GSM networks
at certain levels. Most WCDMA phones include GSM as well, for backward
compatibility. WCDMA borrows certain technology ideas from CDMA, as the name
implies, but is in fact very different and incompatible with phones and networks
using “CDMA” technology. In Europe and Asia, WCDMA is being deployed in the all-
new 2100 MHz frequency band. In North America, WCDMA is being deployed in the
existing 1900 MHz (PCS) and 850 MHz (cellular) bands.
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