1. Find "More"
Press the phone icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-985dac77-368a-492b-9682-7a60edcd8e6b.png?width=208&height=450)
Press the menu icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-49d627fc-9f86-4aac-b79f-60e5ae3657dd.png?width=208&height=450)
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f4aa3c7f-cfc5-470d-a1be-c746f3b302d3.png?width=208&height=450)
Press More below the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-db95d025-4238-4872-af7b-4c590d5ebea3.png?width=208&height=450)
2. Turn call waiting on or off
Press the indicator next to "Call waiting" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-535e6d60-6c33-4287-af0e-4ebfca1b570b.png?width=208&height=450)
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-535e6d60-6c33-4287-af0e-4ebfca1b570b.png?width=208&height=450)