FIELD: telephone device. SUBSTANCE: device has central processor unit 1, address register 2, memory unit 3, interface 4, commutation unit 5, induction call generator 6, N linear sets 8.1, 8.N, which tone inputs are connected to first tone generator 9, M switches 10.1, 10.M. M tone dial sets 11.1, 11.M, which tone inputs are connected to second tone generator 12, are introduced to accomplish the goal of invention. Channel inputs and outputs of tone dial sets serve as outputs and inputs of M device channels of tone frequency. Signal inputs of tone dial sets are connected to corresponding M signal inputs of commutation unit 5, control inputs and outputs of tone dial sets are connected to corresponding inputs and outputs of interface 4. Each tone dial set 11 has receiver of tone dial and call, first and second repeaters, differential system, first and second switches. Device provides possibility to plug in phone communication lines without leased channel. EFFECT: increased functional capabilities. 3 dwg
