R&R takes every bit of information possible and helps you to prepare strong argument in dispute resolution process. Our tools are:
Continuous recording of all signaling traffic passing your system
Sampling of media streams with recording
Automated CDR comparison system that finds differences and analyzes statistical discrepancies
Ability to narrow down unmatched records and bring their packet capture
Finally you can stay confident that any billing dispute will be resolved with unmatched accuracy and supported by real data. Free, open to public CDR comparison tool here: https://cdr.r-rtele.com