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Glossary:
Installation and Upgrades for G700 with S8300 or S8700
555-234-100 — Issue 3 — May 2003
335
Erlang
A unit of traffic intensity, or load, that is used to express the amount of traffic that is needed to keep one facility busy for
1 hour. One Erlang equals 36 hundred call seconds (CC). See also
CCS or hundred call seconds.
ESCC
Enhanced single-carrier cabinet
ESF
See
extended superframe format (ESF).
ESI
End system identifier
ESPA
European Standard Paging Access
ETA
(1) Extended trunk access; (2) enhanced terminal administration.
Ethernet L2 switch
In the Avaya G700 Media Gateway and in the Avaya stackable switch and router family, an Ethernet L2 switch consists
of one or more 8-port, wire-speed Application-Specific Integrated Circuit (ASIC) devices.
Ethernet switch
A device that provides for port multiplication by having more than one network segment. An Ethernet switch directs data
only to the target device, instead of to all devices that are attached to the local area network (LAN).
ETN
See
electronic tandem network (ETN).
ETSI
See European Telecommunications Standards Institute (ETSI)
.
European Telecommunications Standards Institute (ETSI)
An organization that works to promote integrated telecommunications in the European community. ETSI can be viewed
as the counterpart of the American National Standards Institute (ANSI). See also American National Standards Institute
(ANSI).
expansion control cabinet
See
expansion control carrier.
expansion control carrier
In DEFINITY Server configurations, a carrier in a multicarrier cabinet that contains extra port circuit packs and a
maintenance interface. In a single-carrier cabinet, an expansion control carrier is also called an expansion control cabinet.
expansion interface (EI)
A port circuit pack in a port network (PN) that provides the interface between a TDM bus/packet bus on the PN and a
fiber-optic link. The EI carries circuit-switched data, packet-switched data, network control, timing control, and DS1
control. An EI in an expansion port network (EPN) also communicates with the master maintenance circuit pack to
provide the environmental status and the alarm status of the EPN to the switch-processing element.
expansion port network (EPN)
In DEFINITY Server configurations, a port network (PN) that is connected to the TDM bus and the packet bus of a
processor port network (PPN). Control is achieved by indirect connection of the EPN to the PPN by way of a port-
network link (PNL). See also
port network (PN).
Expert Agent Selection (EAS)
A feature by which incoming calls can be routed to specialized groups of agents within a larger pool of agents.