Abstract: An MMS circuit set-up system includes a real time link manager (RTLM) which is coupled to the audio video controller (AVC) of the MMS. The AVC receives data from the MMS reservation system about the starting and ending times for conferences and sends commands to the RTLM to set up connections for the conference. The RTLM is provided with a database of configuration and location information about remote sites and has access to the resource database of one or more ATM switches and/or other networking equipment. The RTLM sends configuration messages to ATM switches and/or other networking equipment in order to set up a conference. According to a presently preferred embodiment, the ATM switches are controlled by the RTLM using SNMP (simple network management protocol) via an ETHERNET.TM. connection to the slot controllers of the ATM switches and networking equipment which does not support SNMP are controlled by the RTLM using TCP/IP (transaction control protocol/internet protocol) via an ETHERNET.TM.