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Call Scenarios and Applications
Issue 7 March 1998
A-73
13. User Scenarios — Flexible Billing
Call Sequence 1, shows an incoming call on an ISDN-PRI trunk delivered to
Split A. The ISDN trunk is configured for MultiQuest service. The incoming call
indicates in its SETUP message that Flexible Billing is supported. The call rings at
agent 5001 and is answered. The agent requests a billing change on the call,
setting the new rate to $10/minute. This billing change is sent over the ISDN-PRI
trunk, and the 4ESS rejects the change. The ECS sends the response to the ASAI
adjunct. The agent requests a billing change on the call, setting the new rate to
$5/minute. This billing change is sent over the ISDN-PRI trunk, and the 4ESS
accepts the change. The ECS sends the response to the ASAI adjunct.
Host
4ESS
Call Offered Event
Connected Event
Set Value
Comment
(item=flexible billing,
Alerting Event
RELease COMPlete
Set Value
Switch
DEFINITY
(flexible billing enabled)
(item=flexible billing,
RELease COMPlete
Return Result message
Call SETUP message
FACility message
(service=multiquest,
indicating reason for rejection
feature = flexible billing)
FACility message
(item=flexible billing,
type=new rate,
amount=1000)
type=new rate, amount=1000)
Call placed to monitored
split
Call rings at agent
Call answered by agent
Adjunct requests billing
change
Request sent to 4ESS
Reject message
type=new rate, amount=500)
4ESS rejects billing
request
Rejection sent to
Adjunct
Adjunct requests
billing change
FACility message
(item=flexible billing,
type=new rate,
amount=500)
FACility message
indicating acceptance
Request sent to 4ESS
4ESS accepts billing
change
Result sent to Adjunct
ECS