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Call Scenarios and Applications
A-16 Issue 7 March 1998
Screen Transfer — Station Monitoring
A user at monitored station A performs a screened transfer operation from the
data terminal. The adjunct processor, using Third Party Call Control requests,
places the first call on hold (Third Party Selective Hold) and initiates a call to
user C (Third Party Auto Dial). After users A and C talk, user A uses the data
terminal to signal the adjunct processor to complete the transfer of the held call to
user C.
Call Initiated Event Report (A)
3rd Party Auto Dial (dest=C)
3rd Party Selective Hold (A)
3rd Party Selective Hold-ACK
Call placed
on hold
Agent and customer
talk
Users A and C
talk
User receives
dial tone
3rd Party Merge
(transfer)
3rd Party Merge-ACK
(from=A, to=C, other=B)
User requests
screened transfer
to C
User completes
transfer
3rd Party Domain Control
(domain=A)
Control granted
3rd Party Domain Control-ACK
User logins to
application
Customer
Phone
B
User
Phone
A
Connected Event Report (A)
Customer information
delivered to data
screen
Alerting Event Report (A)
User connects
User
Phone
C
User and customer
talk
Caller information
delivered to data
screen
Call alerting
Alerting Event Report (C)
Connected Event Report (C)
User Answers
Call alerts
phone
Switch
Adjunct
Processor
User
Terminal
C
User
Terminal
A