3rd party software/Asterisk
From Freeside
Asterisk can be used as Soft Switch (among many other things). Freeside can examine recorded CDR data for subscriber billing purposes.
- CDR PgSQL
- http://www.voip-info.org/wiki/view/Asterisk+cdr+pgsql
- Schema: asterisk-1.4.18/contrib/scripts/postgres_cdr.sql
See Also
- Telephone Switching on Wikipedia.