A conference organizer uses conference software to define a conference and to store conference information on the organizer's computer system. The stored conference information includes a list of attendees, and a personal proxy mailbox for each attendee. Each attendee has a wireless device, such as a...http://www.google.com.tw/patents/US7231423?utm_source=gb-gplus-share專利 US7231423 - Interactive wireless device communication system for meetings and conferences