What ingredients are needed to enable widespread personal teleconferencing over the Internet and NREN? The major focus of our work in the Multimedia Conferencing Project at ISI is on the design and implementation of protocols at a number of levels in the protocol stack; at the lower levels, real-time data communication services for the Internet in general; and at higher levels, a connection management architecture to facilitate connections among heterogeneous systems. In this paper, we confine our discussion to higher level issues: an overall connection architecture, a connection control protocol, and configuration management. Multimedia, Teleconferencing, Connection architecture, Connection management, Configuration management, Connection control protocol.