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A Class-5 telephone switch is a telephone exchange in the public switched telephone network (PSTN) that directly serves subscribers and manages subscriber...

switched telephone network. A class-4 switch does not connect directly to telephones; instead, it connects to other class-4 switches and to class-5 telephone...

A telephone exchange, also known as a telephone switch or central office, is a crucial component in the public switched telephone network (PSTN) or large...

interconnection method in the 21st century, used with the Lucent 5ESS Class-5 telephone switch to present day), microwave radio relay and ultimately fiber-optic...

The GTD-5 EAX (General Telephone Digital Number 5 Electronic Automatic Exchange) is the Class 5 telephone switch developed by GTE Automatic Electric Laboratories...

as a Class 5 telephone switch in the public switched telephone network (PSTN) until the early 1990s, when it was replaced with electronic switching systems...

Class 5 may refer to: A5-class customs vessels Class 5 telephone switch Class V (U.S. Army), ammunition of all types, and associated items G-5-class motor...

Central office can mean any of the following: Telephone exchange Class-5 telephone switch Headquarters Corporate headquarters Conservative Campaign Headquarters...

The 5ESS Switching System is a Class 5 telephone electronic switching system developed by Western Electric for the American Telephone and Telegraph Company...

This list of telephone switches is a compilation of telephone switches used in the public switched telephone network (PSTN) or in large enterprises. Centura...

(software switch) is a call-switching node in a telecommunications network, based not on the specialized switching hardware of the traditional telephone exchange...

a manual switchboard. Later these small companies would have a Class 5 telephone switch providing local automatic service. Much of this equipment was manufactured...

PSTN network topology is the switching network topology of a telephone network connected to the public switched telephone network (PSTN). In the United...

implementations achieved the same switching topology in solid-state electronics. The crossbar switch is one of the principal telephone exchange architectures, together...

electromechanical switching systems. Because of the installed abundance of rotary dial equipment well into the 1990s, many telephone keypads were also...

4 Electronic Switching System (4ESS) is a class 4 telephone electronic switching system that was the first digital electronic toll switch introduced by...

Rural/Urban digital loop carrier, the DMS-10 telephone switch, the DMS SuperNode family of telephone switches (DMS-100, DMS-200, DMS-250, DMS-300, DMS-500...

not violated. The databases map telephone numbers to 15-character strings of caller names. Class 5 telephone switches, which provide end-office services...

switching systems Class 4 - Toll-access switching systems Class 5 - End-office switching systems Class 5 end-office switches provide local telephone service...

IMA2 switch. It then produced the ITS-5 switch, which met the Class-5 telephone switch requirements, the ITS-4 switch, which met the Class-4 telephone switch...