An analog cellular standard developed in the United States and primarily employed there and in the Asia-Pacific region
The traditional method of storing, processing, and transmitting voice and data signals by continuously changing electrical waves
A transfer mode in which the information (voice, data, and video signals) is organized into cells for transmission
Generally computed by dividing service revenues by the average number of subscribers for a given period
A central network formed by the combination of fiber-optic cable and other links, which permits the transmission of traffic between and among exchanges and distribution cabinets in a telecommunications network
The range of frequencies that can be passed through a communications medium in a given amount of time
High speed connectivity - wireless transmission that typically allows transmission of multimedia content
The infrastructure and radio equipment associated with a cellular transmitting and receiving station, including land, building, tower, antennas, and electrical equipment. Cell sites are linked back to switches using microwave networks and/or regular phone lines.
The percentage measure of the number of customers that have been disconnected during a particular period, either voluntarily or involuntarily, divided by the average number of customers during that period
A digital cellular scheme that uses a slow-power signal that sends calls in a wide frequency channel, all at once, and decodes the data at the other end of the call
A method of storing, processing, and transmitting information through the use of distinct electronic or optical pulses that represent the binary digits 0 and 1
A modem technology that uses existing twisted-pair telephone lines to transport high-bandwidth data such as multimedia and video to service providers
An enhanced form of the TACS analog standard that enables operators to expand the capacity of the TACS networks by employing higher frequencies
A development of GSM which allows for the faster delivery of advance mobile services such as full multimedia messaging
A non-voice value added service for GSM networks that allows information to be sent and received across a wireless network
A digital cellular standard for mobile telephone system developed in Europe and employed worldwide
Measure of frequency or cycles per second. Usually measured in millions as Megahertz (MHz) or in billions as Gigahertz (GHz).
Lines in service and lines fully built-out to the distribution point and ready to be connected to subscribers
A standard digital service capability that features one or more circuit-switched communication channels capable of carrying digital voice, data, or image signals at higher speeds than analog networks
International transmission, switching, and network management facilities, which serve as a point of entry/exit in the country for calls to/from abroad
A "store and forward" messaging service which allows mobile subscribers to exchange multimedia messages with other mobile subscribers. MMS supports the transmission of additional media types: text, picture, audio, video, or a combination of these.
A digital wireless telephone system that uses light, inexpensive handsets with long battery life to communicate via low-power antennae
A telephone exchange operated within an organization used for switching calls between internal lines and between internal and publicly switched telephone network lines
Cellular service that permits subscribers of one network to use their cellular telephones in another operator's network
A service which enables cellular telephone users to send and receive text messages on their handsets
A monetary unit whose value reflects a basket of major currencies, with the U.S. dollar comprising majority of the basket
An electronic chip card that is inserted into a handset and identifies the subscriber to the network
A device that selects the paths or circuits to be used for the transmission of information and establishes a connection; Switching is the process of interconnecting circuits to form a transmission path between users and capturing information for billing purposes
Standard technology for synchronous data transmission on optical media, where the bits from one call are carried within one transmission frame
Third-generation cellular technology which provides greater bandwidth, allowing transfer rates over wireless devices from 384 Kbps to 2 MBps compared to a maximum of 9.6 Kbps for GSM technology
The number of installed telephone lines in a country per 100 inhabitants
A telecommunications service involving teletypewriters connected through automatic exchanges, A teletypewriter is a printing telegraph instrument that has a signal-activated mechanism for automatically printing received messages.
A variant of the U.S. AMPS cellular system that uses 25 KHz channels in the 900 MHz frequency band
An earth station with a small antenna, usually 1.8 meters or less. Typically used to connect a central hub with a large number of geographically removed sites via receive/transmit terminals.
The popular term for a high-frequency wireless local area network (WLAN). It is an alternative to a wired LAN.
A global, license-free, and platform-independent protocol designed for internet content and advanced telephony services on digital wireless phones and wireless terminals
Allows a mobile user to connect to a local area network through a wireless radio connection
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