• ETSI ES 201 481
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ETSI ES 201 481

  • Integrated Services Digital Network (ISDN); ISDN service enhancements based on DDI ranges for call diversion supplementary services
  • standard by European Telecommunications Standards Institute, 03/01/2000
  • Publisher: ETSI

$43.00$85.00


To identify and investigate if there are additional requirements to ISDN services, as a result of user requirements on DDI ranges.

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