Can asterisk DB (cdr table) inserts wrong records?

Hi All,

There is a discrepancy in call duration record between cdr data base (ours) and a mobile operator that we have installed our IVR with their PRI_ISDN system. Their records are way different from our records.

Please notify so that I can email the details, it does not look nice when I paste it here.

It is a disaster if asterisk DB has a bug !!!