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Category:Telephony

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Telephony class in the US Army, 1917
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

  • Audiotex - an automated voice response application that allows users to enter information over the telephone
  • 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

T

Pages in category "Telephony"

The following 130 pages are in this category, out of 130 total.

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

O cont.

P

R

S

T

U

V

W

Media in category "Telephony"

The following 8 files are in this category, out of 8 total.