Category:Telephony: Difference between revisions

Latest revision as of 17:33, 14 April 2014

Telephony class in the US Army, 1917

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.

C

D

Digital telephone systems

T

Telephone switching systems

Pages in category "Telephony"

The following 161 pages are in this category, out of 161 total.

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

R

S

T

U

Usability

V

W

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

@@ Line 1: / Line 1: @@
+[[Image:Telephony Class NGM-v31-p357.jpg|thumb|right|340px|Telephony class in the US Army, 1917]]
 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 ==
-*'''[[:Category:Audiotex|Audiotex]]'''
+*'''[[:Category:Cellular telephone systems|Cellular telephone systems]]''' - a system of telephone communications organized around a series of fixed site radio transceivers which each operate over a base area
-*'''[[:Category:Cellular telephone systems|Cellular telephone systems]]'''
+*'''[[:Category:Centrex telephone systems|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)
-*'''[[:Category:Centrex telephone systems|Centrex telephone systems]]'''
+*'''[[:Category:Digital telephone systems|Digital telephone systems]]''' - a telephone system which relies on digital, instead of analog, equipment for its switching and monitoring functions
-*'''[[:Category:Digital telephone systems|Digital telephone systems]]'''
+*'''[[:Category:Telephone switching systems|Telephone switching systems]]''' - the different systems used by telephone operators to connect calls from one user to another
-*'''[[:Category:Telephone switching systems|Telephone switching systems]]'''
 [[Category:Communications|{{PAGENAME}}]]