Answer:
The public phone box transmit electronic signals through cable while cell phones transmit electromagnetic signals wirelessly.
Explanation:
Public phone boxes are reserved booth for making calls. It uses dial tone frequency to tap to a receiver's frequency. They use a dedicated cable line to transmit electronic signals to a central automatic switch that relays the signal to the recipient's line.
A cell phone has antennas that transmits the electromagnetic wave signal to a cell tower, which in turn transmit to other towers to locate the receiver. The receiver's antenna receives the signal and connection is made.