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

A class-4, or tandem, telephone switch is a U.S. telephone company central office telephone exchange used to interconnect local exchange carrier offices...

A telephone exchange, telephone switch, or central office is a central component of a telecommunications system in the public switched telephone network...

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

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

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

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...

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

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...

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...

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

non-Bell domestic telephone company. Mom-and-pop companies were largely manually operated until the wide adoption of the Class 5 telephone switch providing local...

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

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

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

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

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

the design of large networks of switches, as for example used in telephone exchanges. In the simplest case, a switch has two conductive pieces, often...

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...

address information and control signals from a user's telephone to the wire-center's Class-5 switch. DTMF uses a total of eight frequencies. Multi-frequency...

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...

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

presets for audio, found in Sound Blaster sound cards GTD-5 EAX, class 5 digital telephone switch typically used in former GTE service areas National Weather...

Namibia's telephone numbering plan was originally devised when the country, then known as South West Africa, was under South African administration, and...

Richmond, the Stromberg-Carlson DCO was one of the first digital class 5 telephone switches ever installed in the World's telecommunications network, Muller...

Western Electric ringers. The GTD-5 EAX, GTE Automatic Electric's digital class 4/5 central office telephone switch, was first deployed on June 26, 1982...

440 Hz 5 ms. Problems playing this file? See media help. Call waiting is a telephone service where a subscriber can accept a second incoming telephone call...

Class 5 end office circuit switch systems and Class 4 toll access circuit switch systems that were connected to Class 3 primary toll circuit switch systems...

Crossbar Switching System (1XB), was the primary technology for urban telephone exchanges served by the Bell System in the mid-20th century. Its switch fabric...

Bell Telephone Magazine. 30 (4): 253. Retrieved 2022-01-20. Korn, F.A.; Ferguson, James G. (1950). "Number 5 Crossbar Dial Telephone Switching System"...