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Call Scenarios and Applications
Issue 7 March 1998
A-81
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:
(CRV=15, CID=17, connected=#####)
Host ECS
Domain Control Request
(CRV=15, Domain=station 3010)
Single Step Conference
Single Step Conference Acknowledgement
3rd Party Drop
Single Step Conference
Comment
Get domain control on observer.
Domain Control Acknowledgement
(CRV=15)
3rd Party Drop
Single Step Conference Acknowledgement
Drop Event Report
(CRV=15)
Adds observer to call.
Application learns that observer
Application drops observer,
(CRV=15)
(CRV=15, CID=17, visibility=none)
(CRV=15, CID=17)
needs to listen and talk. First it
drops the observer from call.
(CRV=15, CID=17, visibility=full)
Now it re-adds the observer,
this time with a talk path.
Caller drops from the call.
so that the call will drop.
(CRV=15, CID=17)