Depending upon the call type such as incoming, outgoing, and missed call, the call log provides the following information about the last 100 calls on the phone:

Avaya J100 Series IP Phones store the call log in a file saved on the phone. J100 series phone software version 4.0.3 and later encrypts the contents of the call log file.

You can configure the feature using the 46xxsettings.txt file or the phone web interface. You can enable call logs and call log view or provide access to the user to enable or disable these features using the phone interface. The user can enable the logs for all calls, bridged calls and the forwarded calls. The user can also enable the summarized call log view.

For missed calls, the phone displays the missed call reason that the call server provides. If the user has offline call log enabled on the phone, the call forwarding status in the missed call reason is lost.

If you downgrade the phone software to a version earlier than 4.0.3, the phone cannot retain the call log details. To retain the call log details, enable the offline call log feature in System Manager before downgrading the software.