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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.
9-9