ETS 300 100 : 20001

Foreword
1 Scope
2 Normative references
3 Symbols and abbreviations
4 Additions and/or clarifications to CCITT
  Recommendation E.172 [1]
  4.1 Paragraph 6: Signalling Capability
  4.2 Annex A to E.172
  4.3 Annex B to E.172
5 Additional information on parameters used for
  routing
  5.1 Use of the Transmission Medium Requirement
      parameter
  5.2 Capability of signalling systems to support
      various TMRs
  5.3 Relationship between requested service and TMR
      values
  5.4 ISUP preference indicator values for ISDN
      services
6 Interworking requirements for the support of PSTN/IDN
  services in ISDN
  6.1 Interworking between TUP/channel associated
      signalling and ISUP
  6.2 Interworking between TUP+ and ISUP
  6.3 Interworking impact on supplementary services
  6.4 Service interworking/intercommunication and fall
      back
7 Selection of path/traffic distribution
Annex A (normative): Support of supplementary services
                     in ISDN by ISUP version 1
Annex B (informative): Bibliography
History

Gives advice on call routing during the implementation of ISDN in Europe, as defined by the Memorandum of Understanding on the Implementation of the ISDN in Europe in 1992. Applies to the functions required at ISDN international gateways and international transit exchanges for routing and network planning in order to achieve practical international interconnection of networks.