About: Dropped-call rate

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In telecommunications, the dropped-call rate (DCR) is the fraction of the telephone calls which, due to technical reasons, were cut off before the speaking parties had finished their conversational tone and before one of them had hung up (dropped calls). This fraction is usually measured as a percentage of all calls.

Attributes	Values
rdf:type	chemical substance
rdfs:label	Dropped-call rate (en)
rdfs:comment	In telecommunications, the dropped-call rate (DCR) is the fraction of the telephone calls which, due to technical reasons, were cut off before the speaking parties had finished their conversational tone and before one of them had hung up (dropped calls). This fraction is usually measured as a percentage of all calls. (en)
dcterms:subject	Rates Telephony
Wikipage page ID	27045833 (xsd:integer)
Wikipage revision ID	1115340818 (xsd:integer)
Link from a Wikipage to another Wikipage	Call setup success rate Electromagnetic interference Rates Call setup Telecommunications service provider Cellular network Telecom Regulatory Authority of India Information and communications technology Telephony Landline Article 14 of the Constitution of India Telephony quality of service Telephone call Performance indicator Mobile network operator Routing in cellular networks
sameAs	Dropped-call rate Dropped-call rate Dropped-call rate Dropped-call rate
dbp:wikiPageUsesTemplate	dbt:Clarify dbt:Reflist dbt:Short_description dbt:Telecomm-stub
date	April 2017 (en)
has abstract	In telecommunications, the dropped-call rate (DCR) is the fraction of the telephone calls which, due to technical reasons, were cut off before the speaking parties had finished their conversational tone and before one of them had hung up (dropped calls). This fraction is usually measured as a percentage of all calls. A call attempt invokes a call setup procedure, which, if successful, results in a connected call. A connected call may be terminated (disconnected) due to a technical reason before the parties making the call would wish to do so (in ordinary phone calls this would mean before either of the parties has hung up). Such calls are classified as dropped calls. In many practical cases this definition needs to be further expanded with a number of detailed specifications describing which calls exactly are counted as dropped, at what stage of the call setup procedure a call is counted as connected, etc. In modern telecommunication systems, such as cellular networks, the call setup procedure may be very complex and the point at which a call is considered successfully connected may be defined in a number of ways, thus influencing the way the dropped-call rate is calculated. The dropped-call rate in conventional (land-line) networks is extremely low: significantly less than 0.01%. In mobile communication systems using radio channels the dropped-call rate is higher and may range for commercial networks between 0.1% and a few percent. The main reasons for dropped calls in mobile networks are lack of radio coverage (either in the downlink or the uplink), radio interference between different subscribers, imperfections in the functioning of the network (such as failed handover or cell-reselection attempts), overload of the different elements of the network (such as cells), etc. The dropped-call rate is one of the key performance indicators (KPI) used by the network operators to assess the performance of their networks. It is assumed to have direct influence on the customer satisfaction with the service provided by the network and its operator. The dropped-call rate is usually included, together with other technical parameters of the network, in a key performance indicator known as call retainability. Telecommunication network operators aim at reducing the call dropped rate as much as practical and affordable. In mobile networks this is achieved by improving radio coverage, expanding the capacity of the network and optimising the performance of its elements, all of which may require considerable effort and significant investments on the part of the mobile network operator. (en)
gold:hypernym	Fraction
prov:wasDerivedFrom	wikipedia-en:Dropped-call_rate?oldid=1115340818&ns=0
page length (characters) of wiki page	4843 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Dropped-call_rate
is Link from a Wikipage to another Wikipage of	Mufti (film) Dropped Call Rate Dropped-Call Rate Dropped-calls rate Dropped calls rate
is Wikipage redirect of	Dropped Call Rate Dropped-Call Rate Dropped-calls rate Dropped calls rate
is foaf:primaryTopic of	wikipedia-en:Dropped-call_rate

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