Waiting for the important call

A project I started a few years ago and left it in the half. Now I finally finished it.
It is based on an old Epson PX-8 Z80 laptop with a modem and printer (a reference is attached). I converted the modem to a kind of device that forwards the phone call to another line to be hard to identify the source of the signal. It has a device connected to it that helps encrypt the signal and an audio recorder. Enjoy!