1. Find "Additional settings"
Press the main menu icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b73c638f-669b-407a-bd20-e620638335f5.png?width=206&height=368)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ab44a346-36b8-41f1-b0ac-c60f6938964e.png?width=206&height=368)
Press the menu icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fdf88a63-d216-45cd-b5de-e08c3fa6395f.png?width=206&height=368)
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3511ec76-b30e-47d2-9aac-32636491b619.png?width=206&height=368)
Press Calls.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-606bdfa2-67c5-4710-a16f-227a3efe942e.png?width=206&height=368)
Press GSM call settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a2704163-7063-4393-9456-30aec6495330.png?width=206&height=368)
Press Additional settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-db5b1b14-7903-4675-80ef-c94c68e9c5dc.png?width=206&height=368)
2. Turn call waiting on or off
Press Call waiting to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-13fb9e5b-0652-4f61-b0b4-20f2f98cc773.png?width=206&height=368)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-13fb9e5b-0652-4f61-b0b4-20f2f98cc773.png?width=206&height=368)