+ 'sum_count_class' => {
+ 'name' => 'Summary, one line per usage class',
+ 'invoice_header' => 'Caller,Class,Calls,Price',
+ },
+ 'sum_duration_accountcode' => {
+ 'name' => 'Summary, one line per accountcode',
+ 'invoice_header' => 'Caller,Rate,Calls,Minutes,Price',
+ },