Cellular connectivity

The most prevalent communication form is cellular radio and specifically cellular data. While mobile communication devices, had existed for many years before cellular technology, they had limited coverage, shared frequency space, and were essentially two-way radios. Bell Labs built some trial mobile phone technologies in the 1940s (Mobile Telephone Service) and 1950s (Improved Mobile Telephone Service) but had very limited success. There were also no uniform standards for mobile telephony at the time. It wasn't until the cellular concept was devised by Douglas H. Ring and Rae Young in 1947 and then built by Richard H. Frenkiel, Joel S. Engel, and Philip T. Porter at Bell Labs in the 1960s that larger and robust mobile deployments could be realized. The handoff between cells was conceived and built by Amos E. Joel Jr. also of Bell Labs, which allowed for handoff when moving cellular devices. All these technologies combined to form the first cellular telephone system...