A tariff is a collection of individual rates, a rate being a per-destination price. Each tariff has its own set of rates. Call billing is based on billing units. You can define two billing units for each destination: the first billing unit (interval) and the next billing unit (interval). Billing unit precision is one second, and the minimum length of each unit is likewise one second. Typical billing unit configurations include 60/6 (the first unit, i.e. the minimum charged call duration, is one minute, and subsequent intervals are one-tenth of a minute, i.e. six seconds) and 1/1 (per-second billing).


The main Tariff Management page shows a list of all existing tariffs. Tariffs can be located using the Search form. 

To edit a tariff, click on its name in the list. Click the  Edit Rate icon to edit individual rates for the given tariff. Click the  Upload icon to upload rates into the given tariff.


The Delete icon will be visible only when the tariff is not in use (not assigned to any customer or vendor and not being used in any product’s rating entry), and enables permanent deletion of the given tariff.



Add / Edit Tariff

Existing tariffs can be edited by clicking on the tariff’s name in the list.



Field Description


The logical name for the tariff.


Indicates the currency in which pricing information is defined. All pricing information for a single tariff must be defined in the same currency.

Applied To


Default Off-Peak Period

Allows to select one of the previously defined off-peak periods. If you do not differentiate between peak and off-peak rates, just choose Not defined.


This defines which numbering format rates will be added to the tariff.


The options are:

  • 164 – Add rates for E.164 destinations. This is the default value.
  • 212 – Add rates for destinations in the E.212 format.

For all other services the format value is read-only and dimmed.

Destination Group Set

A set of destination groups (UK-Mobile, CZ-Mobile, etc.) you would like to use for more convenient rate entry.

Free Seconds

Number of free seconds granted for each call. In order to claim free seconds, the length of the call must be at least one billing unit (i.e. the first interval; see the ‘Enter Rates’ section above).

Post Call Surcharge

Increases the total call cost by the given value.

Login Fee

Amount to be charged immediately after the first user authentication.

Connect Fee

Amount to be charged for each successful call, in addition to other charges.

Round Charged Amount

Pattern that defines the rounding of a charged amount in an individual xDR. This pattern takes the form of XXX000. An X (to the left) means that the digit in this position will be left unchanged, while a zero (to the right) means that this position will be rounded off. For example, XXXXX.XX000 means that the amount will be rounded up two decimal places, so that 1.2345 becomes 1.24. Note that rounding off is always done upwards.

Default Formula

Default call rating formula applied to new rates. Note that the value of this parameter is only used when a new rate is inserted. Modification of this parameter has no effect on existing rates.

Update Usage Time

This determines when the First Usage and the Last Usage fields of an account  get updated.

  • If you select Only by billable records the fields will be updated by generating a successful toll call / event.

  • If you select Always – the fields will be updated by the successful usage of any toll-free services.

Short Description

For example, for the tariff name "ABC-SmartCall-USD-1800", the short description will be "Smart call using a toll-free number".


Tariff description.


Free Seconds, Connect Fee and Post-Call Surcharge are only applied when the default rating method is used. For more about different call rating methods, see the PortaBilling Administrator Guide.