Category:Telephony
From ETHW
The use of devices for voice communication, for example, cellular and digital telephone systems.
See the Telephone article for a history of the telephone.
Subcategories
- Cellular telephone systems - a system of telephone communications organized around a series of fixed site radio transceivers which each operate over a base area
- Centrex telephone systems - an abbreviation of Central Exchange, a telephone switching system where the switching equipment is provided at a central exchange instead of at the customer's premises (such as in a private branch exchange)
- Digital telephone systems - a telephone system which relies on digital, instead of analog, equipment for its switching and monitoring functions
- Telephone switching systems - the different systems used by telephone operators to connect calls from one user to another
Subcategories
This category has the following 4 subcategories, out of 4 total.
Pages in category "Telephony"
The following 161 pages are in this category, out of 161 total.
B
C
- Oral-History:James Thomas Cain
- George Campbell
- Archives:Papers of John Joseph Carty
- Cell Phone Antenna Links
- Cell Phones
- The Foundations of Mobile and Cellular Telephony
- Oral-History:Robert Chapuis
- Francis J. Chesterman
- Oral-History:Jacques Clade
- Danny Cohen
- Communication Technologies and Liberation Movements
- Martin Cooper
- Frank A. Cowan
- Donald C. Cox
- Francis M. Craft
- Oral-History:C. Chapin Cutler
- George M. Cutter
E
F
- Milestones:First Distant Speech Transmission in Canada, 1876
- First-Hand:Philips Telephone Exchanges and Denmark 1980-1990
- Oral-History:Steward Flaschen
- Clarence E. Fleager
- Oral-History:Virgilio Floriani
- Oral-History:G. David Forney
- G. David Forney, Jr.
- Frank Fuller Fowle
- Archives:The Centre National d'Etude des Telecommunications and the Competitiveness of French Telephone Industry, 1945-1980
- Richard H. Frenkiel
G
- Oral-History:Wanda Gass
- Oral-History:Paolo Gazzana-Priaroggia
- Archives:Papers of Bancroft Gherardi
- Oral-History:Joseph Giordmaine
- Marcel J. E. Golay
- Education:Good Vibrations - How Americans Fell in Love with the Telephone
- Oral-History:Eugene Gordon
- Elisha Gray
- Johannes A. Greefkes
- Albert G. Greenberg
- Oral-History:Klaus Gueldenpfennig
H
J
K
L
M
O
P
- Archives:Papers of Franklin L. Pope
- Alfred Stanley Peters
- First-Hand:Philips Telephone Exchanges and Denmark 1970-1980
- First-Hand:Philips Telephone Exchanges and Denmark 1990 - 1997
- First-Hand:Philips Telephone Exchanges and Denmark before 1960
- First-Hand:Philips Telephone Exchanges and Denmark, 1960-1970
- Oral-History:Raymond Pickholtz
- Picturephone
- Franklin Pope
- Valdemar Poulsen
- Sir William Preece
- Oral-History:Walter Proebster
- Public Telephones
- Michael Pupin
- Tivadar Puskás
R
S
T
- Education:Telecommunication, the Civil War and War of 21st Century
- Archives:The Strategy of System-Building Telecommunications and the American South, 1885-1920
- Telephone
- Telephone Dials
- Telephone Operators
- Telephone switching
- Telephone Transmission
- Telephony over Power Lines (Early History)
- Milestones:The Trans-Canada Microwave System, 1958
- Archives:Threshhold Extension Demodulators for Multichannel Telephone
- Milestones:The First Submarine Transatlantic Telephone Cable System (TAT-1), 1956
- Transcontinental Telephone Service
V
Media in category "Telephony"
The following 8 files are in this category, out of 8 total.
Bell Gallows Telephone 0441.jpg 600 × 480; 34 KB
Bell telephone 0624.jpg 1,936 × 1,500; 301 KB
Bell Telephone 0625.jpg 640 × 374; 26 KB
Edison's Magneto Telephone 0623.jpg 458 × 640; 50 KB
Hearts Content Station 0638.jpg 599 × 480; 52 KB
Marine Telephone 1181.jpg 1,365 × 1,500; 415 KB
Morse telegraph register 0442.jpg 640 × 378; 32 KB
Wood telephone mouthpieces 0626.jpg 562 × 480; 30 KB
