AT&T AT&T Parameter, Peripheral Equipment, Personal Dial Code, Pickup Group, Private Network

Parameter

Any set of physical properties whose values determine the characteristics or behavior of something

Peripheral Equipment

System Administration Terminal (SAT), SMDR Output device such as a SMDR Printer or a Call Accounting System, Digital Tape Unit (DTU).

Personal Dial Code

Each system user is assigned a PDC and is allowed to “ login” the PDC at any voice terminal in the system (optional feature) as they move about the premises. The PDC may be a 1-, 2-, 3-, or 4-digit number. There are two types of PDCs:

●PDCs assigned to voice terminals - Associated with each voice terminal in the system.

●Floating - Assigned to users and visitors who will be moving about the premises. Floating PDCs may be associated with the attendant position or may be “logged-in” by the user at a system voice terminal. Calls to the floating PDC will ring at the terminal where “logged in”

Pickup Group

A group of individuals authorized to answer any call directed to an extension number within the group.

Port

An interface circuit between System 25 and associated auxiliary and peripheral equipment. Typical references include:

● Terminal	port	(station port)
● Facility	port	(trunk port)

●Auxiliary equipment port

Private Branch Exchange (PBX)

A switching system that provides switched communications access amongst its terminals and facilities (e.g., System 25)

Private Network

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

Private Network Office Code (RNX)

The first three digits of a 7-digit private network number. These codes are numbered 220 through 999, excluding any codes that have a O or 1 as the second digit.

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