Isdn - network - communication device, an isdn - network communication system using and energy expensive method for the communication system

摘要

if a second communication device, a first communication device, is a info2 - signal a from the isdn network berichtetes signal, or a structure of signal, which is a connection - anforderungssignal is used as a shutter sound.the first communication device, when the shutter sound is received by the reception unit, an energy, a signal from the control unit to a controlled device, for the energy of the controlled device to control.