ASAI and Feature Interactions

If a call covers and rings at a station with domain-control, then the Alerting Event will indicate Call Coverage in a Cause IE. The possible causes are: Send All Calls Cover All or Go to Cover (CS3/31), Principal Station is Busy (CS3/26), and Principal Station Not Answering (CS3/28).

When a call is redirected via Redirect Call, the coverage timer is restarted. Thus, if the destination does not answer, the call will go to the coverage point for the principal (that is, the original called party). The subsequent Redirection No Answer timer is also restarted when a call is redirected from a coverage point via Redirect Call.

Remote Call Coverage

Starting with R5: Calls that cover to a remote (off-net) coverage point may cause charging information to be received if the outgoing trunk is administered for charge advice. Charging information will be sent as part of a Charging Event Report invoked by the Trunk Group Notification Association.

Coverage of Calls Redirected Off-Net

Starting with R5: this new feature allows a call classifier port to be added to determine if an external party answers the call. If a call covers to a remote point over a trunk administered for charge advice and modem tone is encountered, the call classifier uplink message may cause ECS to drop the trunk and continue to check for available coverage points. As a result, the adjunct will receive at least one Charging Event Report if answer supervision was provided before the call classifier detected the modem.

If a call covers to an external number over an Advice of Charge (AOC) trunk, the charging number indicated in any Charging Event Reports will be the principal station’s extension number.

Call Coverage Path Containing VDNs

When a call is redirected to a station/split coverage path and the coverage path is a VDN, the ECS provides the following event reports for the call:

Call Redirected Event Report [for the Third Party Domain (Station) Control association monitoring/controlling the station]:

A call redirected event can also be sent if the call provides events to an Event Notification association and the VDN in the coverage path has Event Notification active. The VDN with active notification receives a Call Offered to Domain Event Report. If the VDN in the coverage path is not monitored (Event Notification active), then no call redirected event is sent to the active Event Notification association providing event reports for the call.

Call Offered to Domain Event Report:

12-16Issue 7 May 1998

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Lucent Technologies 555-230-220 manual Remote Call Coverage, Coverage of Calls Redirected Off-Net