EG 201 027 : 1.1.1

Intellectual property rights
Foreword
1. Scope
2. References
3. Definitions
4. Symbols and abbreviations
5. Introduction
6. Inter-network roaming, public/private network
   6.1 Assumptions
   6.2 Model for inter-network roaming
   6.3 A public CTM user roaming in a private network
   6.4 A private CTM user roaming in a public network
7. Further considerations on PISN/public network inter-network
   roaming
   7.1 Management of address information
   7.2 Identification of CTM user
   7.3 Numbering
   7.4 Authentication and encryption
   7.5 Supplementary services
   7.6 Charging
8. Conclusion
Annex A: Capacity of the IMSI for inter-network CTM
         identification
         A.1 Capacity based on fixed code lengths
         A.2 Capacity based on variable fields
         A.3 Other possibilities
         A.4 Conclusions
Annex B: Interworking examples using MAP in the public
         network
         B.1 Model for inter-network roaming
         B.2 A public CTM user roaming in a private network
         B.3 A private CTM user roaming in a public network
Annex C: Interworking examples using INAP in the public
         network
         C.1 Model for inter-network roaming
         C.2 Location registration when a public CTM user is
             roaming in a private network
         C.3 Location registration when a private CTM user is
             roaming in a public network
History

To define and analyse general principles for functions supporting mobility of PISN users and users outside their own PISN moving to other networks and vice-versa. The following types of network shall be studied: public ISDN and PSTN, includes mobility between PISNs.