MicroNet BroadLink SP3353 Guia de Instalação descarregar pdf (Página 61)

POTS

Plain Old Telephone Service - This is the term used to describe basic telephone

service.

PPP

Point to Point Protocol. PPP encapsulates and transmits IP (Internet Protocol)

datagrams over serial point-to-point links. PPP works with other protocols such as

IPX (Internetwork Packet Exchange). The protocol is defined in IETF (Internet

Engineering Task Force) RFC 1661 through 1663. PPP provides router-to-router,

host-to-router, and host-to-hostconnections.

PPPoE

PPP over Ethernet is a protocol for connecting remote hosts to the Internet over an

always-on connection by simulating a dial-up connection.

PSTN

Public Switched Telephone Network was put into place many years ago as a voice

telephone call-switching system. The system transmits voice calls as analog

signals across copper twisted cables from homes and businesses to neighborhood

COs (central offices); this is often called the local loop. The PSTN is a

circuit-switched system, meaning that an end-to-end private circuit is established

between caller and callee.

PVC

Permanent Virtual Circuit. A PVC is a logical point-to-point circuit between

customer sites. PVCs are low-delay circuits because routing decisions do not need

to be made along the way. Permanent means that the circuit is preprogrammed by

the carrier as a path through the network. It does not need to be set up or torn

down for each session.

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MicroNet BroadLink SP3353 Guia de Instalação Página 61