ASAI and Feature Interactions

from the same vector. They must be specified back-to-back, without intermediate steps (wait, announcement, goto, or stop). If the adjunct routing commands are not specified back-to-back, G3V2 routing functionality applies (that is, previously outstanding route requests are cancelled when an adjunct routing vector step is executed). This capability increases the redundancy options available with ASAI. Previously, adjunct routing applications that wanted to have a backup link had to test whether or not the primary link was down and then execute the adjunct routing command for the backup link with a vector. With this enhancement, multiple adjuncts can route the call without waiting for the first route attempt to fail. In addition, the application can use this feature to distribute the incoming call load evenly across adjuncts, based on the adjunct’s CPU load.

Advice of Charge

Starting with R5: the call vectoring commands, route-to-digits, route to number, and adjunct route can result in a redirection of an incoming call to a trunk that provides charge advice. As a result, the charging number will reflect the current value of the CDR calling number. Specifically, if any Charging Event Report is generated after the call is redirected from a vector to an Advice of Charge (AOC) trunk, the charging number will indicate the local party extension, or, in the case of a redirected incoming trunk, the calling party number associated (if available) with the incoming call.

Call Prompting

Up to 16 digits collected from the last collect digit vector command are passed to the adjunct in the Call Offered to Domain Event Report (if they have been collected before the call enters an Active Notification VDN) and the Route ASAI capabilities.

Starting in R6.3, collected digits can be passed with the call to another ECS, if the call is routed over an ISDN trunk which uses either supplementary service B (QSIG), or shared UUI.

Lookahead Interflow (LAI)

This feature is activated by encountering a route to vector command, with the route to destination being an off-ECS number, and having the ISDN-PRI, Vectoring (Basic), and Lookahead Interflow options enabled on the Customer Options form.

For the originating ECS, the interactions are the same as for any call being routed to an off-ECS destination by the route to vector command.

For the receiving ECS, the lookahead interflow Information Element in the ISDN message is included in all subsequent Call Offered to Domain Event Reports and Route ASAI requests for the call, when the information exists, and when the call is

12-24Issue 7 May 1998

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Lucent Technologies 555-230-220 manual Call Prompting, Lookahead Interflow LAI