Put the steps of cellular communication (placing a call on a cellular network) in the correct order, starting with placing a call.
Instructions
Place the call.
Once the call is received by the nearest tower it is relayed to a system/network of cell towers where it is then converted and received by the phone you were
calling.
When the person on the other phone accepts the call and begins to speak, the person's voice is converted to an electrical signal that is sent back through
the network.
Your phone converts the electrical signal that is transmitted via radio waves to an analog signal that you can hear.