Faults of the HLR9820 are classified into three categories:

• Complaints from terminal users

  Complaints from terminal users belong to the service faults, which are classified into the following types

  • Call service faults
  • Short Message Service (SMS) faults
  • Supplementary Service (SS) faults
  • Network access failures
  • USSD failures

  When the preceding service faults occur, handle the problems by referring to this manual.

• Alarms generated by the devices

  Handle this type of faults by referring to the alarm online help.

• Faults that occur when the operator performs routine operations, upgrade, cutover, or expansion.

  Faults reported by operators are classified into the following types:

  • BOSS/SMU client operation failures

    Handle this type of faults by referring to the MML online help.

  • LMT operation failures

    Handle this type of faults by referring to the MML online help.

  • Faults related to the upgrade, cutover, or expansion

    Handle this type of faults by referring to the related guide.

  • Faults detected during the routine maintenance process

    Handle this type of faults by referring to the Routine Maintenance.

Normally, there is no way to avoid that some user data such as International Mobile Subscriber Identity (IMSI) will be used during the fault information collection. You are obligated to take considerable measures, in compliance with the laws of the countries concerned and the user privacy policies of your company, to ensure that the personal data of users is fully protected.

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