Home>ITU Q.86.4:1997

ITU Q.86.4:1997

ITU Q.86.4:1997 International Freephone Service (ifs) Specifies the stage 2 service description for the call handling aspects of the international freephone service on the international public Switched Telephone Network (PSTN). Also applies to IFS caller

More details

Download

PDF AVAILABLE FORMATS IMMEDIATE DOWNLOAD
$17.50 tax incl.

$39.77 tax incl.

(price reduced by 56 %)

1000 items in stock

Table of Contents

4InternationalFreephoneService(IFS)
4.1Scope
4.2References
4.3Definitions
4.4Symbolsandabbreviations
4.5Description
4.6Derivationofthefunctionalmodel
4.6.1Functionalmodeldescription
4.6.2Descriptionoffunctionalentities
4.6.3Relationshipwithbasicservice
4.7INSIB-basedservicefeaturedefinitions
4.7.1Announcementforcaller
4.7.2Geographicalzonecallrouting
4.7.3Variablecallrouting
4.7.4Additionalcustomerservicestatistics/
real-timeinformation
4.8Informationflows
4.9SDLdiagramsforfunctionalentities
4.10Functionalentityactions
4.11Allocationoffunctionalentitiestophysical
locations

Abstract

Specifies the stage 2 service description for the call handling aspects of the international freephone service on the international public Switched Telephone Network (PSTN). Also applies to IFS callers found on ISDNs or private networks directing calls towards IFS customers on the PSTN. Could also apply to some degree to called IFS customers on ISDNs or private networks.

Contact us