An intelligent agent may assume a ghost presence in a meeting on behalf of a non-participant, monitor data communications between participants of the meeting, and identify appropriate triggers or events relating to the non-participant. For example, the agent may detect questions directed at the non-participant or that the non-participant has the knowledge to answer. The non-participant may be auto-summoned with respect to the meeting when the events relating to the non-participant are identified. The auto-summoning may be performed by communicating information about identified event to the non-participant, for example in real-time. The communication about the identified event may be transmitted over any of a variety of communication channels or modalities, including instant message chat, SMS, phone call, establishing a video call, or pager.