Telephony device for a telephony communications network with fixed stations and independent stations

Claim 1

A telephony device, intended to serve in a telephony communications network between fixed stations connected to telephony channels of the network and independent stations capable of telephony communication with said fixed stations, said telephony device comprising: (A) at least one fixed terminal, said one fixed terminal comprising: (i) a radiofrequency transmission/reception interface operable over a plurality of radiofrequency channels, each being capable of transporting at least one of elementary voice channels (B) and at least one of elementary signaling channels (D) according to a predetermined elementary time framing, in order to permit voice and signaling information exchange with said independent stations, (ii) a first line interface with a transmission line capable of transporting at least one voice line channel and a signaling line channel according to a predetermined, bidirectional line time framing, and (iii) terminal processing means comprising: (a) first multiplexing/demultiplexing means for bidirectionally performing multiplexing/demultiplexing between said elementary voice channels and said elementary signaling channels and, also, a multiplexed voice channel and a multiplexed signaling channel, (b) first frame coding/decoding means connected between said first multiplexing/demultiplexing means and said first line interface, for carrying out a bidirectional frame conversion and ensuring correspondence, between the signaling information contained in said multiplexed signaling channel and in said signaling line channel, and also between the voice information contained in said multiplexed voice channel and in said voice line channel, in order to permit the exchange of voice and signaling information between said transmission line and radiofrequency paths allocated to said independent stations in telephony communication with said fixed stations, and (B) fixed management means comprising: (i) a second line interface with said transmission line , (ii) direct connection means to said telephony channels of the network for the flow of voice information between said fixed stations and said fixed management means, (iii) second frame coding/decoding means, connected to said second line interface for carrying out a bidirectional frame conversion in order to restore and receive the multiplexed voice and signaling channels, (iv) second multiplexing/demultiplexing means, connected between said second frame coding/decoding means and said direct connection means, for performing bidirectional multiplexing/demultiplexing between said multiplexed voice channel and said elementary voice channels, in order to permit the exchange of voice information between said direct connection means and said second frame coding/decoding means, and (v) processing means for carrying on a dialogue with said terminal via said multiplexed signaling channel and said signaling line channel in order to manage the allocation of said radiofrequency paths and to monitor said telephony communications.