/mcpJoin Across Lines or Connected Conference Across Lines User experience is enhanced in this release by introducing Cisco Unified IP Phone models that fall outside the purview of existing Join Across Lines service parameter. For these phones this feature is always enabled, without any service parameter to turn it off. For a detailed feature description, information about interface changes, and use cases, see Join Across Lines with Conference Enhancements (SCCP and SIP), on page 116. Usage Guidelines The points below indicate how applications must use the Direct Transfer Across Lines feature: • Applications must add Call Observer on the both the lines across which they try join across lines or connected conference. • Earlier, applications were recommended to check if both the calls have a common address and if that common address is on the same Terminal. For Join Across Lines, it is not required to check if the address is comoomon between two calls across which direct conference is invoked. It must be ensured that both the calls should each have an address that exists in common terminal. • Cisco Unified JTAPI reports the same set of events, as it does currently, for conferencing of calls on the same address. Applications are not required do anything with these calls after invoking Conference() until receiving CiscoConferenceEndEv. • As conference is done across addresses, applications do not get a common controller in CiscoConferenceStartEv and should upgrade the application logic. See Event Flow Comparison and Sample Code, on page 112 for details. Event Flow Comparison and Sample Code The following table provides details of the event flow also sample code. Table 3: Event Flow Comparison and Sample Code for Conference Invocation Join Across Lines Join on Same Lines Setup Address A on Terminal T1 Address B1, B2 on Terminal T2 Address C on Terminal T3 Address A on Terminal T1 Address B1, B2 on Terminal T2 Address C on Terminal T3 Feature Invokation A calls B1[GC1 = GolbalCallID1] GC1: Connection A1 Conn1 GC1: Connection B1 Conn2 B2 calls C[G = GolbalCallID2] GG2: Connection B2 Conn3 GC2: Connection C Conn4 GC1.conference(GC2) A calls B1[GC1 = GolbalCallID1] GC1: Connection A1 Conn1 GC1: Connection B1 Conn2 B1 calls C[GC2 = GolbalCallID2] GG2: Connection B1 Conn3 GC2: Connection C Conn4 GC1.conference(GC2) Cisco Unified JTAPI Developers Guide for Cisco Unified Communications Manager, Release 15 and SUs 112 Features Supported by Cisco Unified JTAPI Join Across Lines or Connected Conference Across Lines