There are several ways to use LiveHive's dialer to call a contact.
Navigate to the contact that you want to call in Contacts. Click on the action pencil icon to the right side of the contact. In the drop-down menu, select Make Call.
This same process works in Groups as well.
Click on the name of a contact to see more information on the right side of the page. Click on the green phone button to create a call task.
You will see the same phone button if you're editing a contact.
Learn more about Call Tasks.