A traffic control system selectively interfaces members of plural groups, as buyer groups and vendor groups, for video communication through a dial-up telephone system, for analyzing and compiling data, scheduling appointments, implementing conferences, consummating sales and the like. The traffick-control...http://www.google.com.au/patents/US6323894?utm_source=gb-gplus-sharePatent US6323894 - Commercial product routing system with video vending capability
