Follow below steps to start free conference call-
1. First open jio4gvoice app, and first call any one person that you want to add in your group call.
2. After the connection is established, you can see a button with 3 dots at the top right corner in the display. Tap on it and then select ‘add new call.’ When you tap on it, the person on the first line is put on hold.
3. Now select and call other one partcipant which you want to add in your conference call [from jio4gvoice app]. after he takes the call. again tap on the 3 dot button at thr top right corner >> now there you can see a option ” Merge calls” . just tap on the merge calls. The 2 participants will be added into the group call now. now you are 3 persons are in the conference call.
4. You should be able to see an option “Merge calls.” Tap on the merge calls tab and the 2 participants will be added into a single group call. Now three people are live on the same call.