usegmtime=no ; log date/time in GMT. Default is "no"
loguniqueid=no ; log uniqueid. Default is "no"
loguserfield=no ; log user field. Default is "no"
In the file /var/lib/asterisk/static-http/config/cdr.html there's a statement to load the csv file for viewing the CDRs in web browser:
ASTGUI.loadHTML("./Master.csv"). However, it fails since it couldn't find the file Master.csv in the folder /var/lib/asterisk/static-http/config. What I did is to create a symbolic link in this folder by the following command
ln -s /var/log/asterisk/cdr-csv/Master.csv
and the CDR viewer started working in AsteriskNow GUI (after Showing Advanced Options) .
Edit the file /etc/logrotate.d/asterisk to roate the CDRs monthly: