A2billing is one of the best Open Source Telecommunication Billing System combined with powerfull callingcard platform by Asterisk. By using this Free Billing System with Aesterisk, you can build prepaid/postpaid calling card services.
A2Billing, Free Telecommunication Billing System, combined with Asterisk now gives any Telecom company a very good reason to consider the A2Billing Soft-Switch over the traditional offerings for TDM and VoIP Soft-Switches as well as wholesale and IP PBX billing, particularly when there is not cost, totally Free and open source.
Some Features
- MySQL or PostgreSQL databases
- Effective Balance Tracking
- lcr & lcd. Progressive rate . Scheduled rates
- Import ratecard from csv
- Customers interface
- Caller ID support authentication
- Invoices pdf / html
- Fail over trunk definition
- Monitor calls & listen by simple click to the call
- Redial feature
- Recurring service
Requirements: PHP 5, PostgreSQL 8 or MySQL 5, Asterisk 1.2.24+
Website: http://www.asterisk2billing.org
Demo: http://www.asterisk2billing.org/cgi-bin/trac.cgi/wiki/Demo