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Port Address Translation
Creates a mapping through the CPE so that incoming traffic arriving on a particular port/protocol is always delivered to a specified device on the end customer’s network.
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Point of Aggregation
a point in the PowerTel network where the traffic from DSLAMs is aggregated and forwarded to Partners or the Partner Information Kit Page 9/81 (see Collateral on this website)
Point of Aggregation
aggregated and forwarded to Partners or the Internet
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Point of Interconnect
Point where the ULL copper wires terminate within a Telstra exchange.
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Permanent Virtual Circuit
Provides the ATM path between the CPE and the Termination Equipment. In the PowerTel network the PVC will traverse the DSLAM and at least one ATM switch. Note that there may be more than one PVC to allow carriage of more than one service
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Public Switched Telephone Network
Also known as Packet Switched Network. International telephone network of copper wires, originally designed to carry analogue voice data.
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A packet is the unit of data that is routed between an origin and a destination on the Internet or any other packet-switched network. When any file is sent from one place to another it is divided into 'Packets' of an efficient size for routing. Each of these packets is separately numbered and includes the address of the destination. When they have all arrived, they are reassembled into the original file.
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Point of Presence
A site where there exists a collection of communications equipment, usually within the end-user's local exchange area. Normally includes a DSLAM
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Plain Old Telephone Service
Is the analogue telephone service that runs over twisted-pair wires and is based on the original Bell telephone system
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Point-to-Point Protocol over ATM
enables a high-capacity central site router with an Asynchronous Transfer Mode (ATM) interface to terminate multiple remote Point-to-Point Protocol (PPP) connections
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Private Automatic Branch Exchange
Automated version of a private branch exchange which automates a telephone switching system within an enterprise and allows users to share a number of outside lines for making external calls.
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Point-to-Point Protocol over Ethernet
PPPoE relies on two other standards: PPP and Ethernet. This is the type of connection used by Bigpond ADSL.
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Post Office Protocol 3
Used to receive e-mail from a remote server.
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Primary Rate Interface
A set of international standards for telephone transmission. ISDN provides an end-to-end digital network, out-of-band signaling, and greater bandwidth than older telephone services. The two standard levels of ISDN are Basic Rate Interface (BRI) and Primary Rate Interface (PRI).
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