McDewey

SCCP phone C(1000) registered to cluster B Phones C are associated with the end-user cluster2 CUCM learns a pattern 10XX, plus PSTN failover rule as 0:1408972 from SAF network, SAF network has unlimited bandwidth. Procedure Application monitors A and B Application sends a lineMakeCall at A to call B Table 59: Basic Call Initiated From TAPI From Phone A and B on Cluster 1, B Transfers to Phone C(1000) on Cluster 2 Over SAF Trunk TAPI messages CTI messages Action A: LINE_APPNEWCALL, LINE_CALLSTATE (LINECALLSTATE_DIALTONE/ LINECALLSTATE_DIALING, LINECALLSTATE_CONNECTED,) B: LINE_APPNEWCALL, LINE_CALLSTATE (LINECALLSTATE_OFFERING/ LINECALLSTATE_RINGING, LINECALLSTATE_CONNECTED) A receives NewCallEvent and CallStateChangeEvent (Dialtone/Dialing/Proceeding /ringback/connected) B receives NewCallEvent and CallStateChangeEvent (offering/ringing/ connected) A calls B B: LINE_APPNEWCALL, LINE_CALLSTATE (LINECALLSTATE_DIALTONE/ LINECALLSTATE_DIALING/Proceeding) LineB: LINE_CALLSTATE (LINECALLSTATE_RINGBACK / LINECALLSTATE_CONNECTED) CallReason = LINECALLREASON_DIRECT B: LINE_APPNEWCALL, LINE_CALLSTATE (LINECALLSTATE_DISCONNECTED) ExtendCallReason = CtiReasonTransferredCall B: receives CPIC event B setup transfers to C(1000), through the ICT(SAF) trunk Complete transfer on B TSPI_linegetcallinfo on disconnected call on B Cisco Unified TAPI Developers Guide for Cisco Unified Communications Manager, Release 15 and SUs 494 Message Sequence Charts Procedure