1
Definitions
1.1 essential information (of internal
automatic observations)
1.2 supplementary information (of
internal automatic observations)
1.3 Answer Seizure Ratio (ASR)
1.4 Answer Bid Ratio (ABR)
1.5 Network Effectiveness Ratio (NER)
2 Merits of internal automatic
observations
3 Time of observations
4 Exchange of the results of
observations
5 Classes of calls
6 Destination analysis from service
observation data
7 Details about supplementary
information for Signalling System No. 5
7.1 Signalling faults
7.2 Ineffective calls associated with
the calling subscriber
7.3 Ineffective calls associated with
the called subscriber
7.4 Network
8 Equipment impact
Annex A -
Cause value categorization