AT&T OneVision DEFINITY G3 Guide Guide de l'utilisateur télécharger pdf (Page 194)

DEFINITY Performance Management User Guide, Release 2.0, 585-229-808

9 Set Alerting Parameters

Set Global Alerting Parameters

Issue 1

November 1998

Page 194

The Erlang C model assumes that there is an infinite queue for calls trying

to access the trunk group to wait in until resources are available. This

means that all calls are eventually served.

The Retrial model assumes that some calls are blocked but will retry. The

Retrial model is an approximation using the average of the results of the

Erlang B and Erlang C models.

Choose one of the following options:

• Erlang B

• Erlang C

• Retrial

In the Service objective field, type a number between .001 and .700 that

represents the percent of calls that may be blocked from accessing that

trunk group based on the current call activity. Trunk group grade of

service events are generated when the computed service objective

exceeds the value in this field.

7 Click Save to save the settings.

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AT&T OneVision DEFINITY G3 Guide Guide de l'utilisateur Page 194