By default, when you are connected on a call, the phone shows details of that call and soft key actions you can perform for that call. In order to see details of a waiting call, you need to scroll the display using the up and down arrow buttons.

You can opt to have the phone automatically show details of a waiting call when one alerts the phone and soft key actions that you can perform on the waiting call. If you use the scroll keys to return the display focus to the currently connected call, the focus automatically returns to the waiting call after a few seconds.

1.Press the Features soft key if shown. To do this during a call, press the key phone PHONE key and then press the Features soft key.
2.Use the up arrow up and down down arrow arrow keys to highlight Call Settings. Press Select.
4.Use the up arrow up and down down arrow arrow keys to highlight Auto Display Waiting Call.
5.Press Change to change the setting.
6.Select one of the following settings as desired:
Off - Show details of the current call only.
On - Automatically show the details of a waiting call.
7.Press the Save soft key.