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This section helps you to understand Ingress-specific call admission control configuration for the SIP trunk group

To View and Edit Ingress

On the SBC main screen, go to All  > Global > Cac > Shared Cac Limits Pool > Ingress.

Select the desired Shared Cac Limits Pools from the drop-down list to view its respective Ingress parameters.

Global - Cac - Shared Cac Limits Pool - Ingress Main Field

 

The Ingress window is displayed.

Global - Cac - Shared Cac Limits Pool - Ingress

 

 

The following fields are displayed:

Cac - Shared Cac Limits Pool - Ingress Parameters

 

Parameter

Description

Call Rate Max

Specifies the maximum sustained ingress call rate allowed in calls per second. (range: 1-450, or unlimited.

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range is 1-1350, or unlimited).

You can set both “callBurstMax” and “CallRateMax” as unlimited; however, if you assign a value to one parameter, the other must also be assigned a value.

Call Burst Max

Specifies the maximum allowed burst size (above the allowed sustained rate) for ingress call attempts, in calls per second. (range: 1-900, or unlimited.
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range is 1-2700, or unlimited).

Register Rate Max

Specifies the maximum sustained ingress rate (registrations per second) of initial SIP registrations allowed. (range: 1-1000, or unlimited.

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range is 1-3000, or unlimited)

You can set both “registerBurstMax” and “registerRateMax” as unlimited; however, if you assign a value to one parameter, the other must also be assigned a value.

Register Burst Max

Specifies the maximum allowed burst (above the allowed sustained rate) for ingress initial SIP registrations. (range: 1-1000, or unlimited.

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range is 1-3000, or unlimited)

Call Limit

Specifies the total number of concurrent calls (either ingress or egress) allowed on ingress. The value ranges from 0 to 2147483647 or unlimited (default).

Emergency Oversubscription

Specifies the oversubscription of resources (as a percentage) that is allowed for emergency calls. The value ranges from 0 to 1000 and the default value is 10.

Extended Emergency Ip Limit

The resource oversubscription (expressed as numeric value) allowed for emergency calls. The value ranges from 0 to 40000 with a default value of 0.

Subscribe Rate Max

Specifies the maximum sustained ingress rate (subscribes per second) of initial SIP subscribe request. (range: 1-1000, or unlimited.
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range is 1-3000, or unlimited)
Subscribe Burst MaxSpecifies the maximum allowed burst (above the allowed sustained rate) for ingress initial SIP subscribe request. (range: 1-1000, or unlimited.
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range is 1-3000, or unlimited)

Other Req Rate Max

Specifies the maximum sustained ingress rate (requests per second) of other out-of-dialog SIP requests. (range: 1-1000, or unlimited.

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range is 1-3000, or unlimited).

Other Req Burst Max

Specifies the maximum allowed burst (above the allowed sustained rate) for any other ingress out-of-dialog SIP request. (range: 1-1000, or unlimited.

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range is 1-3000, or unlimited).

Make the required changes and click Save at the right hand bottom of the panel to save the changes made.

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