What is the name of first mobile sevice?
The first cell phone was invented by Dr. Martin Cooper, who was working for Motorola when he developed the first working prototype called the Dyna-Tac by Motorola.
"On April 3, 1973, standing on a street near the Manhattan Hilton, Mr. Cooper decided to attempt a private call before going to a press conference upstairs in the hotel. He picked up the 2-pound Motorola handset called the Dyna-Tac and pushed the "off hook" button."
Both Motorola and AT&T were attempting to create the network of antennas that would support cell phone service.
"While AT&T developed a system based on mobile (car) phones, Motorola decided to apply its decades of radio expertise and compete with AT&T for access to the proposed new radio frequencies."