Likewise, I had access to call logs (these were fax and voice message machines) for outgoing calls, and it was instructive to compare those against phone carrier switch records. As for whole numbers, it is true that all phone companies use ceiling to calculate call duration (I suppose that was the rationale for using it on money amounts too...) but our worst case carrier used 30 second intervals, most used 6 second intervals, and AT&T measured call duration in seconds. So, no matter the rate, there were decimal cents involved.
On the other hand, all carriers represented time and cost as whole numbers (in characters, of course...) I once gave a talk at a j conference about rummaging these call records - they would make a great source of sample data for a class on data mining. - joey At 16:37 +0800 2009/03/17, bill lam wrote: >On Tue, 17 Mar 2009, Alex Rufon wrote: >Unfortunately, this doesn't apply here in the Philippines since the >rates are always declared as a whole number. A normal mobile phone >iirc the accountant said she checked connection time on the phone >bill with the log of office's telephone system, marked all >discrepancies and fax the phone company to claim for refunds. >-- regards ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
