Logging CDR'S

Is there any good guide that explains how to log cdr's? I have been reading the conf files and i have located Master.csv.
i thought that if i just changed or removed mappings from cdr_custom.csv that it would include or remove them from master.csv
My goal is to be able to pull a .csv file for my outbound calls so i can compare them to my bill. I dont need local channel information. Just the outbound portion that i pay for.
i thought that if i just changed or removed mappings from cdr_custom.csv that it would include or remove them from master.csv
My goal is to be able to pull a .csv file for my outbound calls so i can compare them to my bill. I dont need local channel information. Just the outbound portion that i pay for.