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E and M signaling

Index E and M signaling

E and M signaling is a type of supervisory line signaling that uses DC signals on separate leads, called the "E" lead and "M" lead, traditionally used in the telecommunications industry between telephone switches. [1]

15 relations: Basic Rate Interface, Bell Labs, Business telephone system, Channel-associated signaling, Etymology, Multi-frequency signaling, Off-hook, On-hook, Primary Rate Interface, Pulse dialing, Pulse link repeater, Signaling (telecommunications), Telephone exchange, Telephone magneto, Tip and ring.

Basic Rate Interface

Basic Rate Interface (BRI, 2B+D, 2B1D) or Basic Rate Access is an Integrated Services Digital Network (ISDN) configuration intended primarily for use in subscriber lines similar to those that have long been used for voice-grade telephone service.

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Bell Labs

Nokia Bell Labs (formerly named AT&T Bell Laboratories, Bell Telephone Laboratories and Bell Labs) is an American research and scientific development company, owned by Finnish company Nokia.

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Business telephone system

A business telephone system is a multiline telephone system typically used in business environments, encompassing systems ranging from small key telephone systems to large-scale private branch exchanges.

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Channel-associated signaling

Channel-associated signaling (CAS), also known as per-trunk signaling (PTS), is a form of digital communication signaling.

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Etymology

EtymologyThe New Oxford Dictionary of English (1998) – p. 633 "Etymology /ˌɛtɪˈmɒlədʒi/ the study of the class in words and the way their meanings have changed throughout time".

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Multi-frequency signaling

In telephony, multi-frequency signaling (MF) is a signaling system that was introduced by the Bell System after World War II.

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Off-hook

In telephony, the term off-hook has the following meanings.

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On-hook

In telephony, the term on-hook has the following meanings.

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Primary Rate Interface

The Primary Rate Interface (PRI) is a telecommunications interface standard used on an Integrated Services Digital Network (ISDN) for carrying multiple DS0 voice and data transmissions between the network and a user.

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Pulse dialing

Pulse dialing is a signaling technology in telecommunications in which a direct current local loop circuit is interrupted according to a defined coding system for each signal transmitted, usually a digit.

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Pulse link repeater

In telecommunications, a pulse link repeater (PLR) is a device that interfaces concatenated E and M signaling paths.

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Signaling (telecommunications)

In telecommunication, signaling has the following meanings.

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Telephone exchange

A telephone exchange is a telecommunications system used in the public switched telephone network or in large enterprises.

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Telephone magneto

A telephone magneto is a hand-cranked electrical generator that uses permanent magnets to produce alternating current from the rotating armature.

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Tip and ring

Tip and ring are the names of the two conductors or sides of a telephone line.

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Redirects here:

E and M signalling, E&M wink.

References

[1] https://en.wikipedia.org/wiki/E_and_M_signaling

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