1. Find "Additional settings"
Press the phone icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a1845d8c-4ad5-42e4-b086-17ceeb9337ad.png?width=214&height=380)
Press the menu icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1af3ee7a-84cb-4a46-8a9a-fedce39e963f.png?width=214&height=380)
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a012d2cf-95ea-437c-80ad-658fa3ee1693.png?width=214&height=380)
Press Calling accounts.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-eb4d27fc-2f2c-4a30-9803-cc0d363d1cae.png?width=214&height=380)
Press the name of the SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-77247993-3961-482f-aa03-74365a6aaf68.png?width=214&height=380)
Press Additional settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0e3aa3d1-46ec-4eea-95f7-1c631efcfb87.png?width=214&height=380)
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-0cff6b47-7a9d-4649-8dd3-9a4b959e56f2.png?width=214&height=380)
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-0cff6b47-7a9d-4649-8dd3-9a4b959e56f2.png?width=214&height=380)