I need to add custom rates
my voip supplier charges per minute as follows:
Local 0.36c
Local Off-peak 0.26c
National 0.36c
National Off-peak 0.26c
MTN & Vodacom 0.95c
MTN & Vodacom Off-peak 0.85c
etc
How would I populate this into the custom ratebook?
Would I be using per unit, min and max costing?