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Chapter
12
PTN(X)
12.16 Q
QOS Quality Of Service. Network characteristics (transmission speed, etc.) can be measured,
improved and, to some extent, guaranteed in advance.
QSIG Q Signaling Protocol. Set of standard signaling protocols between the private PBXs of a
telephone network (Q reference point) interconnected by digital ATLs.
12.17 R
RADIUS
Remote Authentication Dial-In User Service. A client/server protocol that enables
remote access servers to communicate with a central server in order to authenticate
remote users before allowing them access to the systems or services they have
requested.
RAS
Remote Access Server. Remote access server to the system LAN.
RCE
Rich Communication Edition (for example, OXO Connect Compact is the short
designation for OXO Connect Compact).
RGO, RGI,
General resource keys supporting local and/or external calls, whether outgoing
RGM
(RGO), incoming (RGI), or mixed (RGM).
RNIS
"Réseau Numérique à Intégration de Services". French equivalent of ISDN.
ROSE
Remote Operations Service Element
RSB
Resource key dedicated to a trunk group (bundle); used for making external outgoing
calls on a particular trunk group, and receiving all network calls.
RSD
Resource key for a particular destination; supports local calls for this number if
assigned to a speed dial number, incoming calls for the number if assigned to a DDI
number, or outgoing calls on a trunk group if assigned to a trunk group.
RSL
Resource key dedicated to a set; supports calls to and from a particular set.
12.18 S
SATA
Serial Advanced Technology Attachment - Hard disk interface bus.
S0 BUS Type of connection for S0 digital terminals (passive short bus, long/short point-to-point bus,
extended bus); S0 buses and terminals are connected up via an S0 option embedded in an
Alcatel Reflexes terminal.
SELV
Safety Extra Low Voltage. Classification of interfaces in accordance with standards
EN60950 and IEC 950.
SIP
Session Initiation Protocol. A signaling protocol for Internet conferencing, telephony, events
notification, and instant messaging. SIP initiates for example, call setup, routing and
authentication within an IP domain.
SLI
Single Line Interface. Board allowing the connection of analog terminals (also known as Z
terminals).
8AL91217USAA - Ed. 01 - July 2018 - Installation Manual
Glossary
Private Telecommunications Network (eXchange). A private network consisting of
switches and terminals connected together by telephone links.
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