Tap call icon and slide to the right to answer the call.
Tap call icon and slide to the right to answer the next call.
Tap Putting “Name/Number” on hold to put the first call on hold.
Join the first two callers into a single multi-party call by tapping Merge icon.
To temporarily leave the conference call, tap Hold icon. To rejoin the conference call tap Unhold icon.
Tap End call icon to end the call.
Try that and let me know how that works for you.
---------- Post added at 08:07 PM ---------- Previous post was at 08:01 PM ----------
Ok.. Now I tried it I don't think that will work, but you can try it too. On stock there is a "add call" button from the screen when you're in a call. When you hit that button it opens up the dialer again. Then you are able to call another number, after that you just merge the calls together.