1

When you have an active phone call and you receive another phone call, select Hold and Answer Call.

Your active phone call is put on hold and the incoming call is answered.
2

Select More , select Merge, and then choose the phone call to merge.

The original call is resumed and merged with the incoming call. You can view the participants in the phone call by selecting .
1

When you have an active phone call and you receive another phone call, select Hold & Accept.

Your active phone call is put on hold and the incoming call is answered.
2

Select More , select Merge.

The original call is resumed and merged with the incoming call.