Glossary
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PS Packet-Switched. Packet-switched networks move data in
separate, small blocks (packets) based on the destination
address in each packet.
R
RDI Restricted Digital Information
S
SB SwiftBroadband. Simultaneous voice and broadband data up to
432kbps per channel.
SIP Session Initiation Protocol for setting up, controlling and
closing sessions in the Internet. These sessions include Internet
telephone calls, instant messaging and multimedia conferences.
SMS Short Messaging Service
STE Secure Terminal Equipment
STU Secure Telephone Unit
T
TCP Transmission Control Protocol. One of the core protocols of the
Internet protocol suite. TCP provides reliable, in-order delivery
of a stream of bytes, making it suitable for applications like file
transfer and e-mail.
U
UDI Unrestricted Digital Information
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