6. Advanced Topics

• API Calls
• CDR Server
  • CDR-CGR
  • CDR-FS_JSON
  • CDR-RPC
• CDR Client (cdrc)
  • Import Templates
  • CDR .CSV
• CDR Exporter
  • Export Templates
  • CGR-CSV
  • CGR-FWV
  • Hybrid CSV-FWV
• CDR Stats Server
  • Configuration
  • Metrics Types
  • ExternalQueries
  • Example use
• LCR System
  • Data structures
  • Code implementation
• DerivedCharging
  • Configuration
• Rating history
  • History-Server
  • History-Agent
• Rating logic
  • User balances