Abstract: A telephone set is provided enabling seizure for originating and terminating calls of a telephone line connected thereto to be performed as well as release thereof, as the result both of a first command produced by a first switching entity actuated from the handset of the telephone set as well as via a second command produced by a second switching entity that is able to be actuated independently of the handset, switching entities producing the commands via individual communication establishment elements which are inserted in parallel in a loop which links, via the controlled power feeding arrangement, the output terminals of a first diode bridge, the input terminals of which are connected to the two line wires via a protection circuit, together with a second diode rectifying bridge, performing actual rectification, linked via capacitors to the output of the protection device, in parallel with the first diode bridge, and adapted to power a microprocessor and relevant circuits of telephone set circuitry, via a

Abstract: The invention relates to automatic outgoing and incoming channel balance and separation circuits between local telephone set lines and network junctors. The separation circuit associated with the telephone set lines possesses an electronic line feed circuit and a separator constituted by an operational amplifier whose output is connected via two equal resistors in series to one of the outputs of the electronic supply circuit, the junction of these two resistors being connected to the output of this separation circuit. The separation circuit associated with the junctor possesses two input amplifiers connected to the network via output resistors of equal value, one terminal of one of these output resistors being connected via a passive resistive and capacitative network to an operation amplifier, and the other terminal of this resistor being connected via a single resistor to this operational amplifier.