Today I decided for the first time to try a 3 way call and for some reason I could never get it to work. I made the initial call to my brother and after he answered I told him what I was doing and called our other brother. When he answered, I tapped "Merge Calls" and at the top of the phone it had one brother on hold while the other I could hear fine. Hitting the "Swap Calls" icon seemed to work fine, but I could never get the 3 of us on the call simultaneously. What could I possibly be doing wrong ? Thanks in advance.