Not able to see other contacts

I have successfully setup JM with LDAP and from the admin console i am able to see all the users. Using Exodus client, i have asked 3 test users to login to the JM server, they are able to successfully login. When they login, i am not able to see them in my exodus session. I added them using add contact feature, but the username appears with a pending status and the contact doesnt received an invitation for adding themselves to the contact list.

How do i go about see all those contacts logged into JM server?

Please help…