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TS 03.78 (CT4)
Customised Applications for Mobile network Enhanced Logic (CAMEL) Phase 2 – Stage 2

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(P) GSM Rel-98 v7.8.1    2002/08    202 p.
(P) GSM Rel-97 v6.11.1    2002/08    201 p.
(P) GSM Rel-96 v5.8.0    1999/06    80 p.


Rapporteur:  LANTELME, Isabelle
Descendant(s):  TS 23.078    
See also:  CAMEL-related TS/TR    


This TS specifies the stage 2 description for the second phase (see TS 02.78) of the Customized Applications for Mobile network Enhanced Logic (CAMEL) feature which provides the mechanisms to support services of operators which are not covered by standardized GSM services even when roaming outside the HPLMN.

The CAMEL feature is a network feature and not a supplementary service. It is a tool to help the network operator to provide the subscribers with the operator specific services even when roaming outside the HPLMN.

In this TS, the GSM Service Control Function (gsmSCF) is treated as being part of the HPLMN. The regulatory environment in some countries may require the possibility that the gsmSCF and the HPLMN are controlled by different operators, and the gsmSCF and the HPLMN are therefore distinct entities.

In the second phase the CAMEL feature supports:
  • mobile originated and forwarded calls;
  • mobile terminating calls;
  • any time interrogation;
  • suppression of announcements;
  • announcements, in band user interaction;
  • charging features;
  • supplementary service invocation notifications;
  • USSD interaction with the gsmSCF.
  • North American carrier selection.


 

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1   Scope   PDF-p. 10
2   References   PDF-p. 11
3   Definitions, symbols and abbreviations   PDF-p. 12
4   Architecture   PDF-p. 14
5   Detection Points (DPs)   PDF-p. 16
6   Description of CAMEL Subscriber Data   PDF-p. 19
7   Description of CAMEL BCSMs   PDF-p. 21

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