McDewey

Figure 41: EM Memory Optimization Option Feature Use Case 4 External Call Control BasicCallInitiatedFromTAPIwithExternalCallControlonTranslationPattern and CEPM Returns Reject Configuration Phone A, B are in cluster devices. B matches the translation pattern BXXX which has calling and called party transformation defined to transform A to A1 and B to B1 and External Call Control is also enabled. Procedure Application sends a lineMakeCall at A to call B. Result Dialed number B matches the translation pattern BXXX which has External Call Control enabled. This takes precedence and CUCM requests CEPM to get routing rule for B. CEPM returns Reject. TSP Message to App data Party A LINE_APPNEWCALL, LINE_CALLSTATE (LINECALLSTATE_DIALTONE/ LINECALLSTATE_DIALING) CallerID = A / CalledID = “” mod Calling = A / mod Called = “” A initiates Call to B A receives NewCallEvent and CallStateChangeEvent (Dialtone/Dialing) Cisco Unified TAPI Developers Guide for Cisco Unified Communications Manager, Release 15 and SUs 744 Message Sequence Charts External Call Control