Share Read on Mobile Enter Reading Mode How To Hold A Successful Conference Call On iPhone Posted on Aug 27th, 2015 by kklocclo conference callMerge CallsThree-way calling IPS Tips and Tricks Step 2 - Add the new CallerTouch the Add Call button to initiate another call. The person you're on the line with will be put on hold.Image courtesy of: makeuseof 2 of 10 Next Article Make Custom Ringtones using your own Music SCAN THIS QR CODE WITH YOUR PHONE