How do I set up a speaker phone on the S4 Galaxy Core?

[AC Question]

How to set up speaker phone on the S4 Galaxy Core

I am new to a smartphone. I want to use speaker phone during a conversation but so not know how to activate it.

 

[Rukbat]

Re: How to set up speaker phone on the S4 Galaxy Core

There's a speaker button on the phone app when it's on a call. Press it.