FreePBX 2.5 Powerful Telephony Solutions
Installing FreePBX on CentOS 5.2
Installing FreePBX on Ubuntu Server 8.10
Updating modules from the online repository
Installing new modules from the online repository
Installing and updating modules from a file
Operational modes for extensions
Outbound routing and Least Cost Routing
General call recording options
Direct Inward System Access (DISA)
System Protection, Backup and Restoration
Maintaining and protecting backups