Meeting manager 350, in turn, retrieves a list of {HEAD ~ meetings} handled by {TAIL ~ failed CB server} 380 n from meeting database 365 and sends a request to process manager 311 to launch a new CB server 380 n  
Meeting manager 350 , in turn , retrieves a list of { HEAD ~ meetings } handled by { TAIL ~ failed CB server } 380 n from meeting database 365 and sends a request to process manager 311 to launch a new CB server 380 n
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH