- Rates for prepaid and for postpaid
- The budget expressed in money and/or minutes (seconds)
- High accuracy rating: configurable to milliseconds
- Handles volume discount
- Received calls bonus
- Fully/Easy configurable
- Very fast (5000+ req/sec on a single machine)
- Good documentation
- Commercial support available
Install & run screencast: http://youtu.be/qTQZZpb-m7Q
Browsable HTML http://readthedocs.org/docs/cgrates/
PDF, Epub, Manpage http://readthedocs.org/projects/cgrates/downloads/
API reference godoc or gowalker
Also check irc.freenode.net#cgrates and Google group for a more real-time support.