31Options ListHeadset port external alerterWhen the Headset port external alerter option is activated, it supports a visual oraudible alerter and/or recorder device. This device plugs into the Headset port, whichis located on the bottom of the telephone. After you select Headset port extalerter from the Options List menu;orFrom the External alerter screen, pressthe On Key to turn on Headset portexternal alerter, or press the Off Key toturn off Headset port external alerter.Press the Done Key to save changes. Press the Quit Key or Options Key to exit.Note: Additional equipment is required to implement this option. For more informa-tion please contact your Nortel Networks distributor.Display diagnosticsThe Display diagnostics option tests the functionality of your telephone’s displayscreen and indicator lights. This option also provides information on the firmwarecurrently in use on your M3905 Call Center telephone. After you select Displaydiagnostics from the Options List menu;Use the up or down Navigation Key toscroll through the list and view thechanging display screens.Press the Done Key to return to the Options List menu. Press the Quit Key orOptions Key to exit.On Off
