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• The FreePBX web GUI can be used to view these log files – see Asterisk Logfiles

• For more detailed log file analysis, the grep command line tool is helpful

• Another tool helpful in call analysis are call display reports, especially clicking on a call's System Unique ID number to see the Call Event Log breakdown for that particular call – see CDR Reports Module

Configure log file history retention

• see Configure Asterisk log file retention

Other log files to note

• The system log file in /var/log/messages has TFTP server log information, which can be helpful troubleshooting phone configuration – see View TFTP requests from phones

• The log file /var/spool/mail/asterisk logs e-mail sending activity

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