Sometimes

You can right-click a search result and see if the host has the ability to Chat. There is also a Direct Connect search type, where you enter the IP and the port. To see the IP and port of a host, Browse that host and if they are browseable, the IP and port will show in the search tab.

However, IP and Ports for a host often change, the host can be busy, the user doesn't notice a chat request and firewalls can block such contacts. So, contacting a host is possible, but does not often work.

Cheers