Subscribers
Subscriber billing
A connection, a plan, and the month it is due.
A subscriber has a connection, a plan, and a status: live, due, or paused.
The bill for the month is generated from the plan. A payment closes it.
A collector's list is the dues on their route.
A pause is a date range. The next bill can see it.
A new connection is a row before the first bill. It does not skip the record.
The office sees which areas have not been collected.
A complaint about the line can sit on the same subscriber.
A plan change is dated. The old rate does not silently cover the new month.
A new cashier can take a payment and find a connection on the first day.
The close is billed, collected, and still due.