Question

How to make conference call please don't moderate the question

Answer 1

just call someone after that there will a option come Add Call click on that call another person and when he pick up your call then click on Merge call.
done now you are in conference call

Answer 2

Heya...

When you call any person, there are many option present.One of them is add call. Just click on it. Then your contact list will appear. Choose the person's contact whom you want to add on your call. Then the previous person will go on hold and a call will be given to the selected user. When he pick up the call click on the option merge call. In this way you can make conference call.