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Intelligent Network Fault Handling

2013-09-22
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Course Description 1 Course Introduction 1 Course Objectives 1 Chapter 1 Intelligent Network Service Case Analysis 2 1.1 Overview 2 1.1.1 Common fault phenomena 2 1.1.2 Common causes of faults 4 1.1.3 Basic ideas for fault location 5 1.2 Background knowledge 5 1.2.1 Intelligent network architecture 5 1.3 Classification fault location 9 1.3.1 Unable to trigger intelligent service (no IDP message) 9 1.3.2 Unable to trigger intelligent service (with IDP message) 11 1.3.3 Resource application failure 16 1.3.4 Abnormal sound playback when balance is insufficient 18 1.3.5 Abnormal number collection 19 1.3.6 Busy tone after multiple consecutive calls 22 1.3.7 Connection failure 23 1.3.8 The called number is changed 26 1.3.9 No charge 27 1.3.10 Abnormal call record (billing error) 28 1.3.11 Incorrect reply signaling 29 1.3.12 Incorrect CFL message 31 1.4 Cases 32 1.4.1 Incorrect billing feature settings lead to loss of end-office call records 32 1.4.2 Insufficient resources lead to billing without connection 33 1.4.3 No prompt tone when dialing 193 during busy hours due to trunk double lines 34 1.4.4 Abnormal caller number caused by caller number change 34 1.4.5 Improper SSP software parameter settings lead to unreachable calls in some office directions 35 1.4.6 Loop detour leads to multiple IAM messages sent repeatedly by SSP for one intelligent call 36 1.4.7 Improper SSP data settings lead to unreachable calls to mobile phones from 17911 service 37

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