Table of Contents

Intellectual Property Rights
Foreword
Foreword
1 Scope
2 References
3 Definitions, symbols and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 Architecture
   4.1 Functional Entities used for CAMEL
   4.2 Interfaces defined for CAMEL
5 Detection Points (DPs)
   5.1 Definition and description
   5.2 DP processing rules
6 Description of CAMEL Subscriber Data
   6.1 Originating/Terminating CAMEL Subscription
        Information (O/T-CSI)
   6.2 Other CAMEL data
7 Description of CAMEL BCSMs
   7.1 General Handling
   7.2 Originating Basic Call State Model (O-BCSM)
   7.3 Terminating Basic Call State Model (T-BCSM)
   7.4 Rules for Implicit Disarming of Detection Points
   7.5 BCSM Modelling of Call Scenarios
8 Procedures for CAMEL
   8.1 Overall SDL architecture
   8.2 Handling of mobile originated calls
   8.3 Retrieval of routeing information
   8.4 Handling of mobile terminating calls
   8.5 Handling of forwarded calls
   8.6 Handling of mobile calls in the gsmSSF
   8.7 Assisting case
   8.8 Procedure CAMEL_Provide_Subscriber_Info
   8.9 Any Time Interrogation
   8.10 Handling of USSD to/from gsmSCF
   8.11 Handling of Supplementary Service Invocation
        Notification
   8.12 CAMEL specific handling of location updating and
        data restoration
   8.13 Processing of Non-Call Related Events
   8.14 Cross phase compatibility
   8.15 Handling of North American Carrier Information
9 Description of information flows
   9.1 gsmSSF to gsmSCF information flows
   9.2 gsmSCF to gsmSSF information flows
   9.3 Optional (Service logic dependent) gsmSCF to gsmSRF
        information flows
   9.4 gsmSRF to gsmSCF information flows
   9.5 gsmSCF to Assisting SSF information flows
   9.6 Assisting SSF to gsmSCF information flows
   9.7 gsmSCF to HLR information flows
   9.8 HLR to gsmSCF information flows
   9.9 HLR to VLR information flows
   9.10 VLR to HLR information flows
   9.11 HLR to GMSC information flows
   9.12 GMSC to HLR information flows
   9.13 MSC to gsmSCF information flows
   9.14 VMSC to GMSC information flows
   9.15 MSC to VLR information flows
   9.16 VLR to MSC information flows
10 Interaction with supplementary services
   10.1 Line identification
   10.2 Call forwarding services
   10.3 Call Barring services
Annex A (informative): Change history
History

Abstract

Describes the stage 2 description for the second phase 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.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	3GPP CN 2