Lucent Technologies 555-230-220 manual Issue 7 March 1998 A-81

Call Scenarios and Applications

16. Single-Step Conference

In call sequence 1, a service observer is added to the call using Single-Step Conference. The observer is first added in a listen-only mode, using Single-Step Conference with no visibility. The observer is later connected in a listen/talk mode by disconnecting the observer and doing a second Single-Step Conference with full visibility.

NOTE:

State or national laws may require you to inform the parties on a call that the call is being monitored.

Just prior to the messages shown, the application learned (via domain control on station 3001) that a call with CID 17 has alerted at station 3001 and has been answered. The application knows that the station 3010 wants to service observe any call that arrives at this station.

Call Sequence 1:

Host		ECS	Comment
	Domain Control Request		Get domain control on observer.
	(CRV=15, Domain=station 3010)
	Domain Control Acknowledgement
	(CRV=15)
	Single Step Conference		Adds observer to call.
	(CRV=15, CID=17, visibility=none)
	Single Step Conference Acknowledgement
	(CRV=15)
	3rd Party Drop		Application learns that observer
			needs to listen and talk. First it
	(CRV=15, CID=17)		drops the observer from call.
	Single Step Conference		Now it re-adds the observer,
	(CRV=15, CID=17, visibility=full)		this time with a talk path.
	Single Step Conference Acknowledgement
	(CRV=15)
	Drop Event Report		Caller drops from the call.
	(CRV=15, CID=17, connected=#####)
	3rd Party Drop		Application drops observer,
	(CRV=15, CID=17)		so that the call will drop.

Issue 7 March 1998 A-81