Preface
1. Introduction
   1.1 Purpose
   1.2 Document organization
   1.3 Major changes in this issue
   1.4 Requirements terminology
   1.5 Requirement labelling conventions
2. Application of reliability criteria
   2.1 Equipment boundaries
   2.2 Service life
3. Hardware reliability modelling methods
   3.1 Component reliability prediction
   3.2 Equipment service restorable time
   3.3 Operations, administration and maintenance
       activities
   3.4 System reliability modelling
   3.5 Reliability and system architecture testing
4. Hardware reliability parameters
   4.1 Introduction
   4.2 Downtime
   4.3 Hardware cutoff call rate
5. Hardware reliability requirements
   5.1 Individual termination downline
   5.2 Multitermination downtime
   5.3 Total capability downtime
   5.4 Hardware cutoff call rate
   5.5 System operations capability
6. Application of field performance objectives
   6.1 Outage causes
   6.2 Remote switching units
   6.3 Operations, administration and maintenance activities
7. Field reliability performance measures
   7.1 Outage downtime
   7.2 Outage frequency
8. System level measures and objectives
   8.1 Outage event definitions
   8.2 Reportable outages and objectives
   8.3 Scheduled total outage event duration
   8.4 ISDN switching capability
   8.5 System operations capability
9. Individual termination objectives
10. Other criteria
    10.1 Outage recovery
    10.2 Cutoff calls
    10.3 Ineffective machine attempts
    10.4 Reliability and quality switching systems generic
         requirements (RQSSGR)
Requirement-object list
References
Acronyms
Definitions
Requirement-object index