• CCITT Rec. M.21 (11/1988) – PRINCIPLES FOR MAINTENANCE PHILOSOPHY AND CONSIDERATIONS FOR MAINTENANCE STRATEGY FOR TELECOMMUNICATION SERVICES
  • 1 Introduction
  • 2 Quality of Service
  • 3 Quality of Service factors
  • 4 Relationship between Quality of Service factors which are relevant in maintenance
  • 5 Principles of maintenance philosophy for telecommunication service
  • 6 Maintenance considerations for new telecommunication services
  • References