第2页 实用英语-电信热门词汇集(2)
Glossary for Telecomunications
This glossary helps explain some of the acronyms and technical phrases
Bluetooth
A short-range wireless technology designed to allow connection of portable devices in a wire-free manner. For example connection of a wireless hands-free kit.
Broadband
High speed connectivity - wireless transmission in Vodafone's case. Typically allowing the fast transmission of multimedia content.
CDMA
Code Division Multiple Access - a generic term for a type of digital mobile telephony technology which supports a number of mobile connections. This technique is used by some alternative systems to GSM. See also W-CDMA.
Contract Customer
A subscriber with whom Vodafone has a formal contractual agreement with the customer billed on a monthly basis for access fees and any additional airtime or data used. Vodafone contract tariffs all have an amount of airtime included in the monthly charge. See Prepay Customer.
Data products
Data products are those products and services that use the Vodafone network but are not voice. They include basic text messages (SMS), multimedia messaging (MMS), Internet browsing and downloads such as ring tones and games.
EDGE
Enhanced Data rate for GSM Evolution - a development of GSM which allows for the faster delivery of advance mobile services such as full multimedia messaging.
Fixed line
Telecommunications lines that are not wirefree but connected to physical points.
2G
Second generation technology. A term used to describe the digital cellular networks such as GSM which were introduced as a replacement for analogue cellular networks.
2.5G
Technological upgrades to standard GSM mobile networks which increase data transmission speeds and efficiency. The term encompasses HSCSD, GPRS and EDGE. Seen as an intermediate technology between 2G and 3G.
3G
Third generation (UMTS) technology using new data transmission standards and operating at a different part of the spectrum range to second generation networks. Licences have been issued by European governments to cover the UMTS spectrum around the 2GHz level.
GPRS
General Packet Radio Service. An enhancement to the GSM mobile communications system that supports data packets. It enables a continuous flow of data packets over the system for applications that support web browsing and file transfer for example. With GPRS, your phone is always connected to WAP and other data services, so you don't need to dial in each time you want to access data services.
GSM
Global System for Mobile Communication - an open, non-proprietary digital wireless technology platform.
Hertz (Hz)
Measure of frequency or cycles per second. Usually measured in millions as Megahertz (MHz) or in billions as Gigahertz (GHz).
HTML
Hypertext Mark-up Language - the language used to create web documents.
HSCSD
High Speed Circuit Switched Data. Circuit-switched wireless data transmission for mobile users at data rates of 28.8 Kbits per second or higher, compared to a maximum of only 9.6 Kbits per second using traditional GSM networks.