Net2Phone Max Series Sales Manual page 38

K
Key System
A key system is a telephone system that, for our purposes, is similar to a PBX in most respects. One of the major differences,
however, is that each extension on the system has buttons to directly reach an outside line. Users on a key system do not
have to dial a special number, such as "9", to reach an outside line. Key systems are sometimes referred to as a KTS (Key
Telephone System) or a KPS (Key Phone System). The Max product line has the same connection requirements for a Key
System as for a PBX.
L
LAN (Local Area Network)
A LAN is a network in a confined geographical area, usually in a building or complex. A LAN consists of servers, workstations, a
network Operating System and a communications link.
P
Packet
A packet refers to a logically grouped unit of data. Packets contain a payload (the information being transmitted), originator,
destination and synchronizing information so that they can be transmitted over the most optimal route possible.
Packet Switching
Packet switching is a networking technology used in the transmission of data. Transmitted data is subdivided into individual
packets of data, each with its own unique identification and destination address. The packets can reach their destinations
through different routes, unlike circuit switching, and may also arrive in a different order than how they were sent.
PBX (Private Branch Exchange)
A PBX is a phone system that takes a number of telephone lines from the outside world and makes them available throughout
an office. Users on a PBX share a certain number of outside lines within the company and normally have to dial a special
number, such as "9", to access an outside line. Theoretically, not everyone within the company uses an outside line at the
same time, so the number of outside lines on the PBX is usually equal to some number less than the number of employees. In
this way, utilizing a PBX is more cost effective than connecting an external telephone line to every telephone within an
organization.
POTS
POTS stands for Plain Old Telephone System.
PPP (Point-to-Point Protocol)
PPP is a communications protocol used to connect to the Internet through serial lines (i.e. POTS, ISDN).
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