One Times Radio Transmission Technology (the "one times" refers to the frequency spectrum)
bits per second—The actual data speed over the transmission medium.
CABinet files. A Windows executable file format containing system installation instructions and content for self-extraction and installation.
Code Division Multiple Access—A wideband spread spectrum technique used in digital cellular, personal commu- nications services, and other wireless networks. Wide channels (1.25 MHz) are obtained through spread spectrum transmissions, thus allowing many active users to share the same channel. Each user is assigned a unique digital code, which differentiates the individual conversations on the same channel.
Also known as 1X, this is a high-speed standard for CDMA cellular communications.
V.xx modem communications over a cellular network. It uses a dedicated connection circuit, in contrast to packet-switched. The user is charged by the carrier for the duration of the connection.
Dynamic Host Configuration Protocol—A protocol used to automatically assign IP addresses and related information. DHCP also provides safe, reliable TCP/IP network configu- ration.
The packet data connection has the logical PPP session left open while the underlying physical link (the radio channel) is released. When traffic is to resume, a radio channel is re- aquired and the original PPP session resumes.
Enhanced 911—The capability to automatically identify, to emergency dispatchers, the location from which a wireless call is being made. Phase I requires carriers to provide the telephone number of a mobile making a 911 call and the location of the cell site or base station handling the call.
Phase II requires carriers to deliver more specific latitude and longitude location information, known as Automatic Location Identification (ALI). This typically involves GPS receivers at the mobile.
Electronic Serial Number—The unique serial number assigned to the modem for cellular network use.
