In order to make CallApp your main dialer, go to settings, select general, and then under app shortcuts, click on add dialer shortcut.
By setting CallApp as your main dialer, you will be able to have a faster overall calling experience since everything will take place within our app.
Having CallApp as your main dialer also offers more customization options such as customized keypads.
It’s very easy to make a conference call with CallApp-
During any call, press on the “+” button, choose “Add a call” and then merge them.