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Call Scenarios and Applications
Issue 7 March 1998
A-15
Screen-Based Dialing —
Station Monitoring
A user at a monitored station initiates a call from the data terminal. The first call
receives intercept treatment because the number provided is invalid. The second
call is successful.
User terminates call
attempt
User selects
another destination
by entering the called
person name
Users A and C
talk
User updates directory
with new phone number
for B
User off-hook
Call status updated
Call status updated
User listens to
intercept tone
User Answers
Call alerting
Call status updated
Call status updated
3rd Party Selective Drop-ACK
User dropped
Call Initiated Event Report (A)
3rd Party Auto Dial
(dest=C)
Alerting Event Report (C)
Connected Event Report (C)
User
Terminal
A
User
Terminal
C
Adjunct
Processor
Switch
User
Phone
C
3rd Party Selective Drop (A)
User requests call
by pointing to
telephone number
Application displays
information for B
3rd Party Auto Dial
(dest=B)
User queries
telephone directory
for user B info
Call Initiated Event Report (A)
User goes off-hook
or forced off-hook
User
Phone
A
Customer
Phone
B
User logs into
application
3rd Party Domain Control-ACK
Control granted
3rd Party Domain Control
(domain=A)
Reorder Event Report
(cause=invalid number)