Invoice Me is an online invoicing system, with automatic billing status indicator. With the correct IDs, customers may search their own invoices, and view the payment status (with an option to hide paid invoices). It features search, add, edit, and delete admin interface. When creating a new invoice, the administrator can opt to email a copy of the invoice directly to the customer. Viewers can print the invoices easily via a Print Mode.
ARIA is business class management (ERP) software. It lets you manage inventory levels, maintain payroll, and process orders. It is written primarily in PHP and incorporates the ADODB database abstraction layer. There are currently translations for Chinese, Spanish, Italian, and French.
ASTPP is a billing solution for Asterisk and FreeSWITCH. It supports pre-paid and post-paid billing with call rating and credit control. It also provides many other features such as calling cards, least cost routing (lcr), did management, resellers, callbacks, etc. ASTPP is able to integrate with OSCommerce to provide a Web store for your users to purchase calling cards and sign up for VoIP accounts.
Abstract provides a basic flow-based accounting model. It supports processing of multiple economic resources. It automatically calculates the value of accounting transactions given information on resource transfers. This also includes automatic revenue recognition and profit/loss calculation on a per-transaction basis.
AcSys is a Web-based, multiuser accounting system. It support journal entry and reports such as profit-loss, balance sheet, and general ledger. Backing up and restoring the system are supported. It is designed to be easy to learn and use. It is best suited for companies ranging in size from small companies to mid-market companies.
AccWhizz is a multilingual accounting application for small business companies and accounting offices. It is modular, written in PHP 4.x, and operates on top of PHP GroupWare. It runs as a Web application with Apache and phpgroupware serving as a middle layer. Internal data is managed by PostgreSQL/MySQL databases. The SQL server can either be local or remote.