How to analyse genuine call blocks and blocked calls in TEMS Discovery

Hello Friends.

I am kindly requesting for help regarding a more simplified way of analyzing genuine call blocks and blocked calls in tems discovery. It seems i am using a complicated approach.

Additionally, how do I use the Messages view to identify the right failure cause that is either capacity, coverage or interference (inter or intra)?

Also for data KPIs, apart from DL and UL throughput, Latecy, and packetloss Is there any other KPI I can use to describe data services performance on my network?

Thank you. Any assistance offered will be highly appreciated.