View source for Make Retail Tariff from Wholesale Tariff explained

Retail Tariff from Wholesale Tariff is done by following algorithm:

 1. Highest Rate in Wholesale Tariff for Destinations in Destination Group (DG) is selected
 2. This rate is modified by adding some value or percent to it

==== Example ====

Imagine we have Wholesale Tariff with such rates for USA:

* Prefix 1, rate 0.01
* Prefix 12, rate 0.02
* Prefix 123, rate 0.03

And we have Destination Group USA with such Destinations in this Destination Group (1;12;123)

Now if we want to create Retail Tariff adding 0.005 to Wholesale tariff, we will have price for USA Destination Group = 0.035

E.g. highest rate from Destinations is selected and modified.

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= Inner mechanics =

Wholesale tariff line will have such values:

* connection_fee
* min_time
* increment_s

When transforming to Retail such '''Advanced Rates''' are created:

{| border="1" cellpadding="5" cellspacing="0" 
| '''Based on which variable''' || '''FROM''' || '''DURATION''' || '''TYPE''' || '''ROUND BY''' || '''RATE''' || '''Comments'''
|- 
| connection_fee || 1 ||  || event || || connection_fee || This record only created when connection_fee > 0
|-
| min_time || 1 || min_time || minute || min_time || rate || This record only created when min_time > 0 
|-
| increment_s || min_time + 1 || -1 (means 'infinity') || minute || increment_s || rate || This record is always created
|-
|}