Lucent Technologies Release 8.2 manual Pdm, Pgate, Pri

PBX Glossary

PBX

Private Branch Exchange: a customer-owned telephone switch that connects a company’s internal telephone network with the local telephone service provider’s central office. Lucent’s DEFINITY PBX is a good example.

PDM

See processor data module (PDM).

PGATE

Packet gateway.

Point-to-Point Protocol

A TCP/IP implementation tailored for use over telephone lines. It supports router-to-router and host-to-network connections over both synchronous and asynchronous circuits. PPP replaces SLIP, the older Serial Line Interface Protocol.

Port

(1)Interface between an application and the TCP/IP network. A port is a predefined internal address (port number) that serves as a pathway from the application to the Transport layer (or from T to A). (2) circuit-pack port.

PPP

See Point-to-Point Protocol.

PRI

Primary Rate Interface. See ISDN.

Primary Rate Interface

See ISDN.

private network

A network used exclusively for the telecommunications needs of a particular customer.

private network office code (RNX)

The first three digits of a 7-digit private network number.

processor data module (PDM)

A device that provides an RS-232C DCE interface for connecting to data terminals, applications processors (APs), and host computers, and provides a DCP interface for connection to a communications system.

Administration for Network Connectivity
555-233-504 — Issue 1 — April 2000	CID: 77730	483