Accounting and Billing program for ISPs with PrePaid VoIP/Dialup/Lan services.
Arale - Indonesian Accounting Software Arale is an accounting engine written in Java and MySQL. It is designed to comply with the financial regulation issued by Indonesian Government, e.g tax handling, reporting, recording, etc.
FreeSIS is a opensource Salesman Information System
This is software for incasso (debtor collection agencies dutch) to create a dossier and to keep track of payments.