Asterisk -- An Open Source Telephony Toolkit
Asterisk Language Syntaxes supported
Asterisk Developer's Documentation - appendices
ARA - The Asterisk Realtime Interface
CDR - Call Data Records and billing
README - the general administrator introduction
Extensions.conf - the Dial Plan
H.323 channel driver information
Manager CDR driver configuration
PostgreSQL CDR driver configuration
SQLite CDR driver configuration
FreeTDS CDR driver configuration
ACD - Queue system configuration
Meetme - The conference bridge configuration
AST Multimedia and signalling frames