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IN & CAMEL (with pre-paid)

  • Course Name: IN & CAMEL (with pre-paid)
  • Duration: 2 days
  • Technical Level: 3

Overview

This course explains the role that the IN (Intelligent Network) concept and CAMEL (Customised Applications for Mobile Networks Enhanced Logic) play in allowing effective control of services and features in modern telecommunication networks. Potential services and applications are discussed and used to illustrate the value that both IN and CAMEL can bring to both operators and users. Specifically, the role and operation of CAMEL in mobile Prepaid solutions is explained and discussed in detail.

A clear explanation is given of the Intelligent Network Application Part (INAP), Mobile Application Part (MAP), and CAMEL Application Part (CAP) and how they interact with Call Control Protocols (ISDN User Part - ISUP) to provide control of the overall service. Examples are used throughout to illustrate different call and service scenarios.

The morning of day one concentrates on the concept of the Intelligent Network, together with its basic features and services, and the role of SS7. Later, a basic overview of the relevant GSM procedures is given (required in order to understand CAMEL operation).

Day two builds on the IN concept to illustrate how CAMEL is used to provide operator specific (IN based) services for users, even whilst roaming in other networks. A detailed explanation of the different CAMEL features is presented (organized by phases), including CAMEL's role in the Virtual Home Environment (VHE) and Open Services Architecture (OSA) concepts.

Course Objectives

  • State three advantages of Intelligent Networks for the provision of advanced services in modern networks, and name five services which could be provided using IN techniques
  • Draw the standard IN Architecture, describing the use of each functional entity
  • Use signalling flow diagrams to show how IN can be used to enable advanced services in modern telecommunication networks
  • Describe the main problems in providing Intelligent Network techniques alongside Mobility within a common SS7 network
  • Draw the standard CAMEL architecture
  • Use signalling flow diagrams to show how the CAMEL feature can be used to enable advanced operator-specific services whilst roaming (using Intelligent Network techniques)
  • List the main features provided by CAMEL phases 1 to 4
  • Identify the main charging mechanisms provided for both circuit-switched operation and GPRS within the CAMEL feature
  • Using basic diagrams, illustrate typical CAMEL signalling flows for Mobile Originated, Mobile Terminated, and Mobile Forwarded services, and also for prepaid scenarios
  • State three advantages of CAMEL over other prepaid solutions

Course Requirements

An appreciation of modern telecommunications - in particular the basic role of signalling would be beneficial.