NER (Network Effectiveness Ratio)
https://en.wikipedia.org/wiki/Network_Effectiveness_Ratio
Configuration
- default NER filter: 2XX 3XX 4XX 603
- the filter can be changed in the GUI->Settings->System Configuration->NER last sip response filter
Usage
- in the charts (GUI->Charts)
- in the charts in the dashboard
- you can use NER alert in GUI->Alerts / Anti Fraud