ices over T1 or DSL lines thorized access to an organization's network from each of their locations to the frame relay files. The intention is to protect files from network. They are not suitable for voice or computer viruses and electronic snooping. video and are slower than MPLS networks. fixed mobile convergence FTP (File Transfer Protocol) The capability to use the same handset or por- A part of the TCP/IP suite of Internet proto- table computer for Wi-Fi as well as mobile cols. It is software that lets users download voice and data sessions. For voice calls, it is files from a remote computer to their com- the capability to continue the call when mov- puter's hard drive. ing; for example, from a hotspot or home to a cellular network, and vice versa. gateway Allows equipment with different protocols to fixed wireless communicate with one another. For example, Wireless service between fixed points. Gen- gateways are used when incompatible video erally, these are between an antenna on a systems are used for a video conference. Glossary GGSN (GPRS Gateway Support Node) H.323 Converts 3G data packets to those compatible An ITU-based standard for sending voice via with GPRS, the Internet, and other data net- IP. H.323 was originally developed for video works, and vice versa. conferencing. Gigabit Ethernet H.324 A high-speed service used for site-to-site car- An ITU standard for sending video, voice, riers' backbone networks, metropolitan area and data between devices over a single ana- networks, Internet access, and in enterprise log, dial-up telephone line using a 28.8Kbps internal networks. These networks operate at modem. Compression is used on the voice, 1- or 10Gbps. video, and data. gigabits per second Billions of bits per second (Gbps). Fiber- HBA (Host Bus Adapter) optic cables carry signals at this speed. Used to connect Ethernet switches to net- works running Fibre Channel protocols. See GPRS (General Packet Radio Services) also Fibre Channel protocol. A cellular data-packet network service. Upgrades to 