You can set a timer to return the phone to its normal call display after a set period of phone inactivity.
Note that this timer is not applied to the and Visual Voice menus. However, the phone automatically exits the Visual Voice menu after 10 minutes if idle.
To do this during a call, press the PHONE key and then press Features.
Disabled - Do not use the inactivity timer.
30/60 - Apply the inactivity timer after the selected number of seconds.