Request: Provide option for cellular usage periods other than one month

The present firmware allows the user to set usage quotas based on a certain date each month. This is valuable if the subject plan renews on this basis.

However, some plans renew on other intervals. Shown below, for example, are some of AT&T’s current offerings. These renew at 30 day intervals – regardless if the month has 28, 29, 30 or 31 days.

Request: Provide an alternative to specify the renewal period (e.g., 30 days) based on a certain date specified by the admin. (This would be in addition to, and not replace, the present scheme.)