1930, telephone customers in the United States could place a call to a passenger on a liner in the Atlantic Ocean.
mobile phone introduced
In 1946 in St. Louis, the Mobile Telephone Service was introduced.
Cell Phone Cells
info about 1947 phonesIn December 1947, Douglas H. Ring and W. Rae Young, Bell Labs engineers, proposed hexagonal cells for mobile phones in vehicles.
Upgraded
In 1964 Improved Mobile Telephone Service was introduced with additional channels and more automatic handling of calls to the public switched telephone network.
Redone
In 1969, a patent for a wireless phone using an acoustic coupler for incoming calls was issued in US Patent Number 3,449,750 to George Sweigert of Euclid, Ohio on June 10, 1969, but did not include dialing a number for outgoing calls.
Call Handoff
In 1970 Amos E. Joel, Jr., a Bell Labs engineer, invented an automatic "call handoff" system to allow mobile phones to move through several cell areas during a single conversation without interruption.
AT&T
In December 1971, AT&T submitted a proposal for cellular service to the Federal Communications Commission (FCC).
