/mcpEvents Action A, B1, C are in conference-1 (GC1), B1, D, E are in conference-2 ( GC2), B2, F, G are in conference-3 (GC-3) Application completes conference at C by initiating GC1.conference(GC2, GC3) setting B1 as controller. Cisco Unified JTAPI Developers Guide for Cisco Unified Communications Manager, Release 15 and SUs 1170 Message Sequence Charts Message Sequence Charts