S4 dual calls

[upup]

So I am using an S4. When busy with a call a second comes through. How do I disable that. I went into settings, I googled, but don't come right. Can someone please help.

 

[giloo777]

Find "Additional settings"
Press Phone.
Press the Menu key.
Press Call settings.
Press Additional settings.
Turn call waiting on or off

The current settings are displayed.

Press Call waiting to turn the function on or off.

http://ee.co.uk/help/phones-and-dev...samsung-galaxy-s4---call-hold-or-call-waiting

 

[upup]

Thank you