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CAMEL: Intelligent Networks for the GSM, GPRS and UMTS Network

ISBN: 978-0-470-02847-6
428 pages
August 2006
CAMEL: Intelligent Networks for the GSM, GPRS and UMTS Network (0470028475) cover image


Learn how to use CAMEL to transfer the Intelligent Network concept to the mobile world!

CAMEL (Customized Application for the Mobile network Enhanced Logic) is a standard for Intelligent Networks for mobile communications networks.  It is currently deployed in all regions of the world, enabling mobile network operators to offer fast and efficient services to their subscribers.

This book is an in-depth and dedicated reference on CAMEL, taking the reader through the history and development of Intelligent Networks and the essential principles of CAMEL, to the future of the technology.  The author provides guidance on the various standards and specifications, and explains not only how CAMEL works but also why it works this way.  Practical hints on the installation of CAMEL in the network are given throughout the book. 

CAMEL: Intelligent Networks for the GSM, GPRS and UMTS Network:

  • Offers a comprehensive guide to implementing CAMEL.
  • Gives a complete picture, including the network entities & data flows involved.
  • Describes and explains the four CAMEL phases and their aspects.
  • Presents an overview of the principles of Intelligent Networks, such as Finite State Machines, Trigger Detection Points, Event Detection Points and dialogue, essential to understanding CAMEL.
  • Covers charging and accounting issues, and the impact of CAMEL on the charging system in the mobile network.
  • Provides practical hints over and above those mentioned in the formal specifications.

This text will be an invaluable resource for intelligent network service logic designers, service network designers, network engineers, and GSM/UMTS network designers and implementers.  Advanced students on courses such as ‘Intelligent Networks’, ‘Value Added Services’, and ‘Service Networks’ will also find it an excellent guide to the topic.

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Table of Contents

1. Introduction to GSM Networks.

1.1 Signalling in GSM.

1.2 GSM Mobility.

1.3 Mobile Station.

1.4 Identifiers in the GSM Network.

1.5 Basic Services.

1.6 Supplementary Services.

2. Introduction to Intelligent Networks.

2.1 History of Intelligent Networks.

2.2 Principles of Intelligent Networks.

2.3 Service Switching Function.

2.4 Service Control Function.

2.5 Basic Call State Model.

2.6 Dialogue Handling.

2.7 Evolution of the CAMEL Standard.

2.8 Principles of CAMEL.

2.9 Signalling for CAMEL.

2.10 Dynamic Load Sharing.

2.11 Using Signalling Point Code for Addressing in HPLMN.

3. CAMEL Phase 1.

3.1 Architecture for CAMEL Phase 1.

3.2 Feature Description.

3.3 Subscription Data.

3.4 Basic Call State Model.

3.5 CAMEL Application Part.

3.6 Service Examples.

4. CAMEL Phase 2.

4.1 Introduction.

4.2 Architecture.

4.3 Feature Description.

4.4 Subscription Data.

4.5 Basic Call State Model.

4.6 CAMEL Phase 2 Relationship.

4.7 Interaction with GSM Supplementary Services.

4.8 Interaction with Network Services.

5. CAMEL Phase 3.

5.1 General on Third-generation Networks.

5.2 Call Control.

5.3 CAMEL Control of GPRS.

5.4 CAMEL Control of MO-SMS.

5.5 Mobility Management.

5.6 CAMEL Interaction with Location Services.

5.7 Active Location Retrieval.

5.8 Subscription Data Control.

5.9 Enhancement to USSD.

5.10 Pre-paging.

6. CAMEL Phase 4.

6.1 General.

6.2 Call Control.

6.3 GPRS Control.

6.4 SMS Control.

6.5 Mobility Management.

6.6 Any-time Interrogation.

6.7 Subscription Data Control.

6.8 Mobile Number Portability.

6.9 Control of IP Multimedia Calls.

7. Charging and Accounting.

7.1 Architecture.

7.2 Call Detail Records.

7.3 Transfer Account Procedure Files.

7.4 Inter-operator Accounting of CAMEL Calls.

7.5 Correlation of Call Detail Records.

7.6 Global Call Reference.

7.7 Call Party Handling CDRs.

8. 3GPP Rel-6 and Beyond.

8.1 General.

8.2 Enhancements to 3GPP Rel-6.

8.3 Enhancements to 3GPP Rel-7.





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Author Information

Rogier Noldus is Senior Specialist, Intelligent Networks, at Ericsson Telecommunications, Netherlands.  Within Ericsson, he is responsible for the development and implementation of the CAMEL technology.  Rogier has played a key role in the development of the CAMEL standard in ETSI and 3GPP.  He has chaired various conferences on CAMEL, has been speaker at various other international conferences, and represents Ericsson at the ETSI and 3GPP standardization organizations.
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