1. Find "Additional settings"
Press the phone icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6931f341-63a4-4506-9e03-fdac9749ff73.png?width=206&height=450)
Press the menu icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-83f2b07c-409c-4e61-8b18-c067fd3c2b91.png?width=206&height=450)
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-330f7e66-7a95-4ce3-bc8d-cf8d5c0357db.png?width=206&height=450)
Press Calling accounts.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1669663b-07d3-42d2-83cb-6c053a4e6df9.png?width=206&height=450)
Press the name of the SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cc9ef293-c786-4e7e-af81-e11079d55bab.png?width=206&height=450)
Press Additional settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f069522e-1bee-44fb-b71b-1d1a296f0082.png?width=206&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-ef020115-0d93-4406-93d2-0ed1896ceb32.png?width=206&height=450)
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ef020115-0d93-4406-93d2-0ed1896ceb32.png?width=206&height=450)