Vicidial audodialing from lead list

[TrivandAdmin]

Hi,

We have configured a vicidial instance and done the configuration as in documentations. Now what we need is to audio dial each leads when an agent-user login into the dialer.
We have created a campaign, a list and added 2-3 leads into it. But the leads are not get dialed when i logged in as agent. Please help me how to set up auto dialing of leads in vicidial.