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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 CAC - Ingress

On the

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 main screen, go to Configuration > System Provisioning > Category: Trunk Provisioning > Trunk Group > SIP Trunk Group > CAC > Ingress. The Ingress window is displayed.

The CAC - Ingress can be checked for each Address Context, for each Zone, for each SIP Trunk Group created or for all the Address Contexts, Zones and SIP Trunk Groups created. Use the drop-down box to select the desired Address Context, Zone and SIP Trunk Group.

SIP Trunk Group - CAC Ingress Main Fields

 

 

The Edit Ingress window is displayed.

SIP Trunk Group - CAC Ingress Edit Window

 

 

The following fields are displayed:

CAC - 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.

Entended Emergency IP Limit

Specifies the maximum sustained ingress rate (registrations per second) of initial SIP registrations allowed. The value ranges from 0 to 40000 and the default value is 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).

Hpc OversubscriptionSpecifies the over-subscription of the resources (in a percentage) that is allowed for HPC calls. When the baseline call limit and bandwidth limits are reached, normal calls are not admitted, but additional HPC calls are allowed up to the configured value percentage. The value ranges from 0 to 100 % and the default value is 10 %.

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

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