Mine-used KTK100 Multi-functional Interconnected Telephone

We introduce a multi-functional interconnected telephone. The success of this telephone is that it can interconnect several established emergency broadcast systems or voice broadcast circuits reliably and economically, and integrates these systems into the integrated information platform of coal mine. Through the timely and effective scheduling of radio and early warning broadcast, it further improves the coal mine emergency rescue broadcast system. We simply introduce the realization principle and expound key software and hardware design ideas in detail.