Inviting Someone to a Conversation or a Conference
You can invite someone to a conversation or conference.
In the Contact List, open a Conversation window with one of your contacts either by double-clicking a contact's name or right-clicking the contact's name and selecting Send an Instant Message.
In the Conversation window, click Invite.
In the Invite Someone window, select two or more contacts that you want to invite to the conference, and then click OK.
In the Conversation window, type your message, and then press the ENTER key.