This video will show you how to use the 6-way conference calling feature from the app or dialer.
OneTalk lets you have up to six participants on a call, including yourself.
While you're on a call, tap the New Line button.
Type in the number you'd like to add, or select from your contacts. Then tap the green Call button. This will put your current call on hold.
Once connected, drag the call on hold (the red bubble), over the new call (the green bubble) to complete the merge.
Repeat this process to add up to six participants total.
If you need additional assistance please refer to the One Talk Resources Support page.