电信热门词汇集（2）

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