Operation Manual

Glossary
SIP Software Release 6-0-0
J613-M0524-00
115
RS-232 An EIA (Electronics Industry Association) standard that specifies
the electrical characteristics of low speed interconnections between terminals
and computers or between two computers.
RTCP
Real-time transport control protocol. Is the counterpart of RTP that
provides control services.
RTP Real-time transport protocol. Provides end-to-end delivery services of
real-time audio and video.
S
SCN Switched circuit network
serial A method of transmission in which each bit of information is sent
sequentially on a single channel rather than simultaneously as in parallel
transmission.
server A network device that provides services to client stations. Examples
include file servers and print servers.
SIP
Session initiation protocol. Is an application layer, control/signalling
protocol for creating, modifying and terminating sessions with one or more
participants. These sessions may include Internet multimedia conferences,
distance learning, Internet telephone calls and multimedia distribution.
SNMP Simple Network Management Protocol. The Internet standard protocol
developed to manage nodes on an IP network. See MIB.
stop bits A technique used in asynchronous serial communications in
which 1, 1.5 or 2 bits are transmitted after the start bit, a variable number of
data bits and optional parity bit are transmitted. It is designed to frame the
character.
subnet A portion of a network, which may be a physically independent
network segment, which shares a network address with other portions of the
network and is distinguished by a subnet number. A subnet is to a network
what a network is to an internet.
subnet address The subnet portion of an IP address. In a subnetted
network, the host portion of an IP address is split into a subnet portion and a
host portion using an address or subnet mask. See subnet mask, IP address,
network address.
subnet mask A bit mask used to select bits from an Internet address for
subnet addressing. The mask is 32 bits long and selects the network portion
of the Internet address and one or more bits of the local portion. Sometimes
called address mask.