1. Find "Additional settings"
Press the phone icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-7486cbf9-a585-4936-925d-c719d30bb707.png?width=252&height=402)
Press the menu icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-6ee82251-cdef-4a04-8122-c9a525115cbd.png?width=252&height=402)
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-e81e70f0-b64c-43ba-96ca-aec7425176b9.png?width=252&height=402)
Press Calls.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-9c0e7034-4106-4e7b-8fd7-8cdb852c03e4.png?width=252&height=402)
Press GSM call settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-067429ae-c877-43ee-a270-b040f24e9279.png?width=252&height=402)
Press Additional settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-79c71996-2f25-495d-9c07-59bfae921d83.png?width=252&height=402)
2. Turn call waiting on or off
Press Call waiting to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-cd843217-6677-4cf9-88fd-1fdde75eb61f.png?width=252&height=402)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7291123-f-cd843217-6677-4cf9-88fd-1fdde75eb61f.png?width=252&height=402)