Filter Technology by: All Telegraph (34) Exchanges (26) Patents (22) Wireless Tech (22) Data Comms (20) Switching (20) Phreaking/Hacking (19) Electronics (17) Dialing (14) Network (13) Wired Tech (13) Operations (4) Computing (2) Bell Labs Records (436)
Heaviside discovers inductive loading for telephone lines
Oliver Heaviside
1887
Columbia Dry Cell Battery introduced, making liquid phone batteries obsolete
Columbia Dry Cell Battery introduced, making liquid phone batteries obsolete
1896
Pupin loading coils patented
Pupin loading coils patented
Patents Mihajlo Pupin
1900
First multiplexed telephone circuits
1910
Type C carrier system deployed
1922
Coaxial cable enables broadband
Coaxial cable enables broadband
1938
Modern Caravans (Laying cross-country cable)
Modern Caravans (Laying cross-country cable)
Technology
1942
Submarine Cable Systems Development
Submarine Cable Systems Development
Technology
1958
Kao proves fiber optics can carry telephone signals
Charles K. Kao
1966
Lightwave (AT&T)
Lightwave (AT&T)
Technology AT&T / Bell System
1977
How to Install Modular Jacks by Yourself (AT&T)
How to Install Modular Jacks by Yourself (AT&T)
Technology AT&T / Bell System
1984
TAT-8: First transatlantic fiber optic cable
1988
TPC-3: First transpacific fiber optic cable
1989