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Call Scenarios and Applications
Issue 7 March 1998
A-23
VRU-assisted Transaction using Selective
Listening
In this scenario, an incoming call is answered by a VRU (under ASAI control).
After initial interaction between the caller and the VRU, the caller must be
connected to a far end destination requiring secure access (user ID, password,
VRU V Far-End Dest D Adjunct ProcessorECS
3rd Party Selective Listen Disconnect
(party=C, no other party specified
3rd Party Selective Listening
Disconnect ACK
Selective Listen Disconnect
of VRU from Caller
Adjunct Requests
3rd Party Selective Listen
Disconnect
(party=V, party=C)
3rd Party Selective Listen
Disconnect-ACK
Selective Listen
Reconnect of Caller
Adjunct Requests
to all parties on call
3rd Party Selective Listen
Reconnect
(party=C, no other
party specified)
3rd Party Selective Listen
Reconnect-ACK
Selective Listen
Reconnect of VRU
Adjunct Requests
to Called
3rd Party Selective Listen
Reconnect
(party=V, party=C)
3rd Party Selective Listen
Reconnect-ACK
All parties can now hear all other parties on the call
Caller can no
longer hear
VRU or Far-End
Destination
VRU cannot
hear caller
VRU transmits information
to far end
(Info not hear by caller)
Adjunct Requests
Selective Listen
Disconnect of the Caller
from all parties
Application has previously set up a 3rd Party Controlled Conference Call with parties C, V, and D
Caller C