Archived:Call termination key behavior has changed from S60 2nd Edition FP3 (Known Issue)
From S60 2nd Edition, Feature Pack 3 onwards, pressing the Call termination key closes the application.
In earlier S60 devices pressing the Call termination key (red button, end key) moved the current application to the background without closing it. From S60 2nd Edition, Feature Pack 3 onwards, pressing the Call termination key while an application is running closes the application. This behavior is visible on S60 3rd Edition and 3rd Edition Feature Pack 1 devices.
Note that the call termination key does not close the application when using the emulator of S60 3rd Edition MIDP SDK. This behavior is different from the behavior observed on real S60 3rd Edition devices.
How to reproduce
Launch any third-party application. Press the Call termination key. The application is closed and the device switches to the stand-by (telephone) screen.
This is a changed feature and thus there is no solution to bypass the Call termination key behavior. Instead, end users should be instructed to use the Applications (menu) key when wanting to switch from the application to another without closing the first application. Pressing the Applications key once or twice switches to the application menu or the stand-by screen, respectively.