Glossary:
344 Installation and Upgrades for G700 with S8300 or S870 0
555-234-100 — Issue 3 — May 2003
ISN
See information systems network (ISN).
ISO
International Standards Organization
ISVIndependent software vendor
ITPInstallation test procedure
ITU
See International Telecommunications Union (ITU).
IVR
Avay a Interactive Voice Response
IXCInterexchange carrier code
JKL
L2TP
See Layer 2 Tunneling Protocol (L2TP).
LAN
See local area network (LAN).
LAPD
See link access procedure-D (LAPD).
LATA
See local access and transport area (LATA).
Layer 2 Switch
An IP component that statically reroutes packets and streams to another port on the layer-2 switch. The packet s and
streams are rerouted based on the destination Media Access Control (MAC) address.
Layer 3 Switch
An IP component that dynamically reroutes packets and streams to another port on the Layer-3 switch. The pa ckets and
streams are rerouted based on the IP address of the packet or the stream. IP Routing is a Layer-3 functionality.
Layer 2 Tunneling Protocol (L2TP)
A standard for Layer 2 tunneling for remote access. L2TP was established by the Internet Engineering Task Force (IETF).
LBO
See line buildout.
LDN
Listed directory number