About: Ringdown

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In telephony, ringdown is a method of signaling an operator in which telephone ringing current is sent over the line to operate a lamp or cause the operation of a self-locking relay known as a drop. Ringdown is used in manual operation, and is distinguished from automatic signaling by dialing a number. The signal consists of a continuous or pulsed alternating current (AC) signal transmitted over the line. It may be used with or without a telephone switchboard. The term originated in magneto telephone signaling in which cranking the magneto generator, either integrated into the telephone set or housed in a connected ringer box, would not only ring its bell but also cause a drop to fall down at the telephone exchange switchboard, marked with the number of the line to which the magneto teleph

Attributes	Values
rdf:type	Thing software yago:WikicatCommunicationCircuits yago:Artifact100021939 yago:Circuit103033362 yago:Device103183080 yago:ElectricalDevice103269401 yago:Instrumentality103575240 yago:Object100002684 yago:PhysicalEntity100001930 yago:Whole100003553
rdfs:label	Ringdown (en)
rdfs:comment	In telephony, ringdown is a method of signaling an operator in which telephone ringing current is sent over the line to operate a lamp or cause the operation of a self-locking relay known as a drop. Ringdown is used in manual operation, and is distinguished from automatic signaling by dialing a number. The signal consists of a continuous or pulsed alternating current (AC) signal transmitted over the line. It may be used with or without a telephone switchboard. The term originated in magneto telephone signaling in which cranking the magneto generator, either integrated into the telephone set or housed in a connected ringer box, would not only ring its bell but also cause a drop to fall down at the telephone exchange switchboard, marked with the number of the line to which the magneto teleph (en)
differentFrom	Quik Call I
foaf:depiction
dcterms:subject	Telephony equipment Communication circuits
Wikipage page ID	41669 (xsd:integer)
Wikipage revision ID	1093222381 (xsd:integer)
Link from a Wikipage to another Wikipage	Private branch exchange Key Telephone Unit Bell System Dedicated line Telephony Telephony equipment Analog telephone adapter Switchboard operator On-hook Cisco Hotline Party line (telephony) Telephone switchboard Dialling (telephony) Telephone Telephone exchange Relay Communication circuits Binary black hole Control tower Session Initiation Protocol Woodstock, Maine Bryant Pond, Maine Key telephone system Telephone line Telephone magneto Voice over IP Non-dialable point Off-hook Wire spring relay dbr:Cisco_Unified_Communications_Manager 1A2 Courtesy phone Independent System Operator Signalling (telecommunication) Calling Party Control dbr:Call_Manager
Link from a Wikipage to an external page	http://sipstar.com.au/voip/configuring-plar-on-cucm-v6-1/ https://shop-oldfilm.myshopify.com/products/bryant-pond-the-last-ringdown
sameAs	Ringdown Ringdown Ringdown Ringdown
dbp:wikiPageUsesTemplate	dbt:Distinguish dbt:Hatnote dbt:Main dbt:More_footnotes dbt:Redirect dbt:Reflist dbt:Telecommunications dbt:FS1037C_MS188
thumbnail	wiki-commons:Special:FilePath/Jimmy_Carter_Library_and_Museum_99.jpg?width=300
has abstract	In telephony, ringdown is a method of signaling an operator in which telephone ringing current is sent over the line to operate a lamp or cause the operation of a self-locking relay known as a drop. Ringdown is used in manual operation, and is distinguished from automatic signaling by dialing a number. The signal consists of a continuous or pulsed alternating current (AC) signal transmitted over the line. It may be used with or without a telephone switchboard. The term originated in magneto telephone signaling in which cranking the magneto generator, either integrated into the telephone set or housed in a connected ringer box, would not only ring its bell but also cause a drop to fall down at the telephone exchange switchboard, marked with the number of the line to which the magneto telephone instrument was connected. The last ringdown telephone exchange in the United States was located at Bryant Pond, Maine, had 400+ subscribers, and converted to dial service in October 1983. (en)
gold:hypernym	Method
prov:wasDerivedFrom	wikipedia-en:Ringdown?oldid=1093222381&ns=0
page length (characters) of wiki page	6779 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Ringdown
is Link from a Wikipage to another Wikipage of	List of Wildlife Trust nature reserves Vermilion box Dedicated line Index of electronics articles Telephone number Glossary of firefighting equipment Original North American area codes Long-distance calling Hotline PLAR Trading turret Northwestel Dial peer Telephone exchange Courtesy telephone Leased line Telephone call Non-dialable point Automatic ringdown circuit Ring Off Ring off Ringdown circuit
is Wikipage redirect of	Automatic ringdown circuit

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