TELEFONANORDNING FOER ETT TELEFONKOMMUNIKATIONSNAET MED FASTA STATIONER OCH OBEROENDE STATIONER

摘要

A fixed terminal (BFR1) is able to cooperate with a plurality of autonomous stations (SA1, ..., SA4) and is linked to an external management unit (UGRB1) only by way of a single pair of telephone wires (LT). This management unit (UGRB1) then incorporates the means of managing and monitoring telephone communications, and is linked to the switched telephone network (CTPU) as well as to digital channels (CNPU). Communication between the autonomous stations (SA1, ... SA4) and the fixed terminal (BFR1) is performed by way of a plurality of elementary voice channels and elementary signalling channels, whilst the transmission line (LT) is capable of carrying a voice line-channel and a signalling line-channel according to a predetermined bidirectional temporal line framing. The terminal and its management unit are then able to perform a multiplexing/demultiplexing between these various channels. IMAGE