McDewey

Call info Result Action currentCalling = A currentCalled = null CAUSE = CAUSE_NORMAL GC1: CallActiveEv ConnCreatedEv –A ConnConnectedEv – A CallCtlConnInitiatedEv - ATermConnCreatedEv - [Term A] TermConnActiveEv –[Term A] CallCtlTermConnTalkingEv –[Term A]

A initiates a call to B from the application. currentCalling = A currentCalled = B CAUSE = CAUSE_NORMAL GC1: ConnConnectedEv B CallCtlConnEstablishedEv B TermConnActiveEv [Term B] CallCtlTermConnTalkingEv [Term B] B answers the call and A & B are connected. GC1: CallCtlTermConnHeldEv B B presses hold hardkey from the phone and puts the call on hold. Operation not available in current state. Exception: InvalidStateException. B goes on-hook. B tries to resume the call from the application. Scenario 14 Application is observing devices A and B. Phone A is a normal SCCP/SIP phone and phone B is Cisco Unified IP Phone 6901. Application initiates a call from phone A to phone B. B goes off-hook and answers the call. B puts the call on hold by pressing hard key and goes on-hook. Now B tries to resume the call by pressing the line hard key from phone. Configuration: • Phone A – SCCP/SIP Device • Phone B – Cisco Unified IP Phone 6901 Cisco Unified JTAPI Developers Guide for Cisco Unified Communications Manager, Release 15 and SUs 1531 Message Sequence Charts Message Sequence Charts