Alcatel-Lucent OmniPCX Office Installation Manual page 185

Primary Rate Access. Board for connecting a T2 digital primary access; the access supports 48 kbps struc-
tured as 30 B-channels at 64 kbps for voice and data transmission, and 1 D-channel at 64 kbps for signal-
ing.
PROXY
A proxy server is used as an interface between a user and the external Internet network.
PSTN
Public Switched Telephone Network.
PTN(X)
Private Telecommunications Network (eXchange). A private network consisting of switches and terminals
connected together by telephone links.
PWT
Personal Wireless Telecommunications. Corresponds to the DECT standard for the North American coun-
tries (especially the US).
8.1.16 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.
8.1.17 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.
RGO, RGI, RGM
General resource keys supporting local and/or external calls, whether outgoing (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 as-
signed to a trunk group.
RSL
Resource key dedicated to a set; supports calls to and from a particular set.
8.1.18 S
SATA
Serial Advanced Technology Attachment - Hard disk interface bus.
8-7