Martin Cooper invented the cell phone in 1973 while he was general manager of Motorola's communications systems division. He placed the first wireless call to industry rival AT&T Bell Labs while standing on a street in New York City on April 3, 1973. He also called a radio station in New York City to alert the public of his technological achievement.Know More
According to How Stuff Works, during the 1960s, engineers Joel S. Engel and Richard H. Frenkiel of Bell Labs developed the technology to support the first cellular network. While they were waiting for approval from the Federal Communications Commission, or FCC, Martin Cooper and his team at Motorola shocked these competitors by designing and using the first cell phone. Called the Motorola DynaTac, it weighed 2.5 pounds and was 9 inches long.
For the next 10 years, Martin Cooper and his team of engineers worked on the process of making the DynaTac available for widespread, commercial use. In 1983, Motorola began selling a smaller, 16-ounce version of the DynaTac for $3,500, according to Arraycomm, a wireless technology company that Martin Cooper later founded in 1992.
Arraycomm also states that it took seven years after the 1983 DynaTac launch for one million United States citizens to purchase a cellular phone and subscribe to the service.Learn more about Inventions
To ping a cell phone for its location, users must provide the cell-phone carrier with specific information about the phone number, serial number and SIM card number if applicable of the phone and request that the phone be pinged. If the phone returns the ping, technicians can either narrow the location to the nearest cell tower or triangulate a more specific location.Full Answer >
A remote cell phone spy is spying software that is used to monitor and sometimes control a cell phone from a remote device. Some remote features of cell phone spy software include listening to and recording phone calls, accessing stored files and logging the contents of messages.Full Answer >
A cell phone cannot be made untraceable because whenever the phone uses cell technology it can be tracked through the cell towers kept by phone companies. While global positioning system features can be turned off, this connectivity to the cell technology tower cannot be turned off.Full Answer >
When someone purchases a cell phone from his wireless provider, the phone is almost always considered to be locked. This means that it only works on the wireless provider's network. An unlocked cell phone works on any network.Full Answer >