Hello there I've got kind of an odd problem. I have a setup with a lot of SIP channels and a 30 channel PRI which is working perfectly. In order to bill the customers I fetch cdr files from the PRI provider, those files are generated every two hours. If I compare the CDR files from Asterisk and the CDR files from my provider there are large differences in the billsec fields in some of the records. But in most of the records billsec is the same value. F.x. in one of the records my PRI provider bills the customer for 2637 seconds and Asterisk says 1597 in billsec. What could cause these differences, could it be a hanging zap channel or something like that? Thank you, Mickey Binder