In one embodiment, a scheduling/conferencing system provides a user with the ability to set up a camp-on request for a person invited to attend a conference session in response to one or more selections made by the user via a user interface, which may include a name of the person and a specified action to be taken when the person leaves the conference session. During the conference session, a conference port of the person is camped-on. When the person leaves the conference session and his conference port becomes free, the specified action, which includes an attempt to communicate with the person by the user, is executed. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.