Identifying GSM call forwarding active

Sentinel sets the LatestEventReportIndicatesCallForwarded session state variable to true if tBusy is received on an MT call with ‘call forwarded’ information element included in the event report.

Tip For more information see Noldus 4.3.2.2 Call Forwarding Not Reachable — MS Switched Off. (Refer to Noldus footnote below.)

Handling GSM call forwarding active

The typical operator configuration is to send CAN + CUE when call forwarding is active on an MT call. To configure this behaviour in Sentinel, logic similar to the follow must be included in the EndSession feature execution point:

if session.LatestEventReportIndicatesCallForwarded {
    run ContinueAndClose
} else {
    run ReleaseAndClose
}

References

NOLDUS

CAMEL INTELLIGENT NETWORKS FOR THE GSM, GPRS AND UMTS NETWORK

Rogier Noldus

2006

John Wiley & Sons, Ltd

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