Setting a default tab is a helpful way to send the users to the same tab each time they navigate to the Voice Page.
navigate to the Voice Page
select the tab that you would like to designate as the default tab
select the ⋮ 3 dot menu to the right of the tab names
select
📥 Default Tab
The default tab does not have to contain the default list. Cards that are texted or emailed in will be unaffected by the change of the default tab.