ETR 033 : 20001

Foreword
1 Scope and introduction
2 References
3 Numbering plans for VPN
4 Abbreviations and definitions
   4.1 Abbreviations
   4.2 Definitions
5 Private numbers
6 Private numbers used together with public location dependent
   numbers
   6.1 Without DDI
   6.2 With DDI via location dependent numbers
7 Private numbers used together with public location independent
   numbers
   7.1 Without DDI
   7.2 With DDI via location dependent numbers
   7.3 With DDI via location independent numbers
8 Partial ISDN numbers
9 Merging internal numbers
10 Members of more than one VPN
11 Managing the numbering plan
12 Evaluation
Annex A: An evaluation of some aspects that should be considered
         when implementing numbering plans for VPN
Annex B: A summary of the evaluation of different methods for
         the implementation of numbering plans for VPN
History

Describes the translation mechanisms of a public ISDN that supports private numbers as defined by the authority of a Virtual Private telecommunication Network (VPN). Shows, on the basis of examples, solutions for selecting users connected to different exchanges (PTNXs) of the VPN, as well as standalone users.