I am running UCCX 11.6 and CUCM 11.5 . It is configured in wan HA mode. Site "A" has two CUCM's main UCCX , th CTI Mgr , RMCM and AXL registered to site "A". Site "B" has two cucm's and secondary UCCX to test we shut down site "A" cucm's and left primary UCCX active, all calls failed into UCCX. We then shutdown the primary UCCX engine hoping the secondary UCCX would take over. It didn't we got a fast busy. What do you need to shutdown in UCCX to force the other UCCX to takeover.
IS the engine is enough or do you need to shut down Unified CCX Database to force a complete failover. I get shutting down CUCM on site A and leaving UCCX active , calls would fail but not sure why when you shut engine down the HA subscriber didn't take over.
