Fessenden achieves first wireless voice transmission
Fessenden achieves first wireless voice transmission
First transatlantic wireless transmission
First transatlantic wireless transmission
First transatlantic phone calls, using radio signals
First transatlantic phone calls, using radio signals
Bell Labs engineers demonstrate microwaves guided through a hollow metal pipe
Bell Labs engineers demonstrate microwaves guided through a hollow metal pipe
Bell Labs engineers discover that attenuation drops as wave frequency increases
Bell Labs engineers discover that attenuation drops as wave frequency increases
Anglo-Icelandic radio telephone service inaugurated
Anglo-Icelandic radio telephone service inaugurated
Mead, Carson and Schelkunoff publish their 'Hyper frequency wave guides' paper
Mead, Carson and Schelkunoff publish their 'Hyper frequency wave guides' paper
Hedy Lamarr patents Secret Communications System
Hedy Lamarr patents Secret Communications System
Video: Television and The Telephone, Microwave Broadcasting
Video: Television and The Telephone, Microwave Broadcasting
First mobile telephone service introduced, in St. Louis
First mobile telephone service introduced, in St. Louis
Video: Western Electric Mobile Telephone Service video
Video: Western Electric Mobile Telephone Service video
Masers in development at Bell Labs
Masers in development at Bell Labs
Bell Labs engineers conceive Project Echo (first passive communications satellite)
Bell Labs engineers conceive Project Echo (first passive communications satellite)
Bell Labs launches Telstar, the first active communications satellite
Bell Labs launches Telstar, the first active communications satellite
INTELSAT founded for global satellite communications
INTELSAT founded for global satellite communications
Early Bird: First commercial geostationary satellite
Early Bird: First commercial geostationary satellite
Penzias and Wilson discover cosmic microwave background radiation
Penzias and Wilson discover cosmic microwave background radiation
Video: Moon Orbit Communications, Apollo 8 (AT&T)
Video: Moon Orbit Communications, Apollo 8 (AT&T)
Joel patents cellular call handoff
Joel patents cellular call handoff
Cooper makes the first handheld cell phone call
Cooper makes the first handheld cell phone call
Video: Single Sideband, Microwave Transmission (AT&T)
Video: Single Sideband, Microwave Transmission (AT&T)
Video: Advanced Mobile Phone Service (AMPS)
Video: Advanced Mobile Phone Service (AMPS)
First trial of Bell Labs' cellular communication system begins
First trial of Bell Labs' cellular communication system begins
First cellular test network
First cellular test network
Bell Labs creates first single-chip digital signal processor (DSP)
Bell Labs creates first single-chip digital signal processor (DSP)
Nordic Mobile Telephone network launches
Nordic Mobile Telephone network launches
Frenkiel helps launch commercial cellular service
Frenkiel helps launch commercial cellular service
Siemens launches first mobile phone
Siemens launches first mobile phone
McCaw builds the largest U.S. cellular carrier
McCaw builds the largest U.S. cellular carrier
GSM specification completed
GSM specification completed
