43 years ago, on April 3, 1973, a Motorola engineer named Martin Cooper made the first call with mobile phone. On the other end of the line was Cooper's main competitor, Joel S Engel head of Bell Labs.
The call was made with a Motorola Dyna-Tac mobile phone weighing one kilogram and thirteen grams. Mobile was somewhat relevant since the Dyna-Tac had dimensions: 23 x 13 x 4,5 cm. Its package was like a shoebox, containing 30 circuit boards and a battery with a maximum talk time of about half an hour and which took 10 hours to recharge. He had none screen, and you could only do three things with it: talk, listen, and make a call.
Dyna-Tac had already passed some FCC testing in Washington and the big day, Cooper gave one press conference at Manhattan Hilton demonstrating it. OR Motorola at that time it was trying to persuade the FCC to allocate more bandwidth to companies trying to commercialize the emerging technology.
After 43 years and having smartphones in our lives, all of this sounds rather unreal and maybe to our grandparents generation. But it was just before 43 years.
