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Network switching subsystem

Network switching subsystem (NSS) (or GSM core network) is the component of a GSM system that carries out call out and mobility management functions for mobile phones roaming on the network of base stations. It is owned and deployed by mobile phone operators and allows mobile devices to communicate with each other and telephones in the wider public…

Geography, Mobile switching center (MSC) & Description

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Overview

Mobile switching center (MSC)

Description

Procedures implemented

Home location register (HLR)

Equipment identity register (EIR)

  • IMEI International Mobile Equipment Identity
  • MME Mobility Management Entity
  • CEIR Central Equipment Identity Register
  • TACs Type Allocation Code
  • SMS
  • PCRF Policy and charging rules function
  • SMSC Short Message service center

Other support functions

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Map overview Semantic statistics

Network switching subsystem

Nodes81
Edges80
Triples9
Avg. degree1.98
Density0.024691
Components1

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Important terminology Word statistics

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Important terminology

mobile network msc gsm subscriber data hlr services vlr sim calls location core phone auc phones switching used imsi register

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
voice callsinstance ofused for traditional GSM services0.80text
SMSinstance ofused for traditional GSM services0.80text
and circuit switched data callsinstance ofused for traditional GSM services0.80text
WAPinstance ofThis allows GSM mobile phones to have access to services0.80text
MMSinstance ofThis allows GSM mobile phones to have access to services0.80text
the Internetinstance ofThis allows GSM mobile phones to have access to services0.80text
hand over.Procedures implementedTasks of the MSC includeinstance ofprovides subscriber information when the subscriber is outside its home network.Other MSCs for procedures0.80text
hand overinstance ofprovides subscriber information when the subscriber is outside its home network.Other MSCs for procedures0.80text
conference calls or call hold.Generating billing informationinstance ofand vice versa.Arranging handovers from BSC to BSC.Carrying out handovers from this MSC to another.Supporting supplementary services0.80text

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