238 Appendix A Call Flow and protocol detailsMessage sequenceTR/87(4) is an ECMA Technical Report that describes the use of SIP asa transport of service requests and events defined by the ECMA-269(5)specification as XML bodies within SIP messages. The ECMA-323(6)specification defines the XML format of ECMA-269 services and events.The Front End (FE) application conforms to the minimum subset of theTR/87 specification defined for Office Communications Server 2007interworking and those components necessary to support the nextgeneration SIP Contact Center requirements.Figure 92 "Message sequence diagram - CSTA Session Establishment andMonitor Start" (page 238) shows the expected message flow for establishingand monitoring a CSTA session as defined by TR/87.Figure 92Message sequence diagram - CSTA Session Establishment and Monitor StartFigure 93 "SIP INFO message with ECMA-323 content" (page 239) is anexample of a SIP INFO message with ECMA-323 content.Nortel Communication Server 1000Nortel Converged Office Fundamentals — Microsoft Office Communications Server 2007NN43001-121 01.03 StandardRelease 5.0 30 April 2008Copyright © 2005–2008, Nortel Networks.
