Invoice Statuses

Method	Description
crm.invoice.status.fields	Returns field description for an invoice status.
crm.invoice.status.list	Returns a list of invoice statuses.
crm.invoice.status.get	Returns an invoice status by the ID.
crm.invoice.status.add	Creates a new invoice status.
crm.invoice.status.update	Updates an existing invoice status.
crm.invoice.status.delete	Deletes an invoice status.