AT&T 555-230-520 manual Effects of Asai Link Failure on Vector Processing

Functions and Examples

If the call is queued, the adjunct routing step is ignored, and vector processing continues at the next vector step.

NOTE:

For reasons that we discuss later in this chapter, you should always include a wait-timestep, announcement or another adjunct routing step (G3V3 and later releases) after an adjunct routing step.

Effects of ASAI Link Failure on Vector Processing

If the ASAI link specified in the adjunct routing step is down, the step is skipped.

An ASAI link failure can change the manner in which subsequent treatment (that is, announcement and/or wait-time) steps (if any) in the vector are processed. In some cases, such processing is influenced by the position the treatment steps occupy in the vector. In other cases, the positioning of these commands along with their relationship to specific goto commands come into play. For example, any announcement or wait-timestep that immediately follows an adjunct routing step whose ASAI link is down is skipped.

NOTE:

In view of the previous thought, the second step after the adjunct routing step is often implemented as a default treatment. In Figure 9-1,for example, the default treatment in Step 3 is a route to an attendant. After the switch recognizes that the ASAI link is down, this step executes. immediately. (It can take up to 6 minutes for the switch to recognize that the link is down.) Otherwise, the step executes only if the application does not respond with a route within 60 seconds.

On the other hand, if a goto step follows such an adjunct routing step, the switch executes the goto step and then skips various treatment steps according to their position in the vector and based on the action of the goto step. Specifically, if the goto step succeeds, the switch skips any announcement or wait-timestep that is the first non-gotostep branched to by the goto step.

NOTE:

Actually, the first step to which a goto step is usually designed to branch is a nontreatment step (that is, a step containing a command other than a wait-timeor an announcement command). Thus, the skipping of a treatment step according to the scenario described just before this note rarely occurs.

On the other hand, if the goto step fails, the switch skips any announcement or wait-timestep that immediately follows the goto step.

NOTE:

The goto step that fails can be at the end of a sequence of goto steps that branch to each other.

Issue 4 September 1995 9-3