Alcatel-Lucent OmniPCX Office Installation Manual page 227

message or piece of music while keeping an external correspondent on hold.
POP3
Post Office Protocol. Standard Internet protocol for receiving electronic messages. POP3 is a client/server
protocol in which the messages are received and hosted by the ISP. When a message is read, it is
transferred to the client terminal and is no longer hosted by the ISP.
PowerMEX
Module expansion. Controller board for extension or module expansion.
PPP
Point-to-Point Protocol. Protocol used in communication between two computers using a serial interface
(typically a PC connected to a server via a telephone line).
PRA
Primary Rate Access. Board for connecting a T2 digital primary access; the access supports 48 kbps
structured as 30 B-channels at 64 kbps for voice and data transmission, and 1 D-channel at 64 kbps for
signaling.
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
countries (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.
RCE
Rich Communication Edition (for example, OmniPCX Office RCE Compact is the short designation for
Alcatel-Lucent OmniPCX Office Rich Communication Edition Compact).
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
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