Explore how to set up rate plans for a monthly service with a rolling window model, including overage charges and billing options.

Suppose you provide a monthly service:

• $50 per month includes up to 500 minutes free talk each month.

• If the usage exceeds 1500 minutes in a three-month period, pay overage $0.1 per minute.

You can set the following rate plans for your service:

• Create a recurring rate plan and set the flat rate of $50 per month.

• Create an overage monthly rate plan.

  • Set Included Units to 500 minutes.

  • Set List Price to $0.1.

  • Select Month from the Billing Period list.

  • Select Rolling Window from the Smoothing Model list.

  • Type 3 in the Number of Periods field.

  • Select an option in the Overage Option When Smoothing area.

If a customer subscribes your service for a year, the charges will vary according to the overage option you choose. The following two examples show how the rolling window works with these two overage options.