Cost::
The "COST" is the Telkom cost, including VAT.
The Telkom cost usually doesn't charge incoming calls.
The COST is used on all the reports in Topaz
Price::
The "PRICE" IS the calculated price. Based on the
Telkom price plus a % markup, A per second value or
a per unit value.
The price usually has a value for incoming calls.
PRICE is used on the [BILLINGS -> Master billings] reports.
[REPORTS -> STANDARD -> REFERENCE REPORTS],
you can choose between Cost and Price.