In Microsoft Lync 2010, the search box in your Contacts list is your main entry point for both finding and communicating with people.
What do you want to do?
Find a contact
You can find contacts who are already in your Contacts list, in addition to people who work in your organization that you haven’t added to the Contacts list.
To find a contact by name, do the following:
Tap Contacts, and from the Lync tab, start typing a person’s name in the search box. The results are shown below the box.
To find a contact by phone number, do the following:
Tap Contacts, and from the Lync tab, start typing a person’s phone number or extension in the search box. The results are shown below the box.
Search for more participants
When you’re in a conversation, you can add additional contacts to your conversation.
To invite someone to an instant messaging conversation, from the Conversation screen, tap the Actions icon, and then tap Invite Others.
From the Contacts screen, select or search for the contact you’d like to invite to the conversation.