Category:Telephone switching systems

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A "B" Board telephone switching machine for terminating calls to the manual office and redirect to the automatic line

The different systems used by telephone operators to connect calls from one user to another

Pages in category "Telephone switching systems"

The following 28 pages are in this category, out of 28 total.

A

Oral-History:Fred Andrews

C

F

First-Hand:Philips Telephone Exchanges and Denmark 1980-1990

G

Oral-History:Klaus Gueldenpfennig

H

Oral-History:Knud Holst

J

K

M

P

R

S

T

Media in category "Telephone switching systems"

This category contains only the following file.

Telephone Switching Systems B Board Machine Originated Calls.jpg 612 × 489; 318 KB

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Telephony