How do I answer another call while on the phone already

[AC Question]

How do I answer another call coming in while talking to someone else on the phone. I have s Samsung S4.

 

[AlphaTango414]

You will get a pop up message on your screen with 3 options. You can answer call waiting while putting current person on hold, you can answer call waiting and merge the current person, or answer the call waiting and end the call with the current person.