AudioCodes Mediant 800B MSBR User Manual page 540

Requests that reach the user-defined call limit (maximum concurrent calls and/or call rate)
are sent to an alternative route, if configured in the IP-to-IP Routing table. If no alternative
routing rule is located, the device rejects the SIP request with a SIP 486 "Busy Here"
response.
Note: The device applies the CAC rule for the incoming leg immediately after the
Classification process. If the call/request is rejected at this stage, no routing is
performed. The enforcement for the outgoing leg is performed within each alternative
route
classification/routing, and another during alternative routing process.
The following procedure describes how to configure CAC rules in the Web interface. You
can also configure CAC rules using the table ini file parameter, SBCAdmissionControl or
CLI command, configure voip > sbc sbc-admission-control.

To configure a CAC rule:
1. Open the Admission Control page (Configuration tab > VoIP menu > SBC >
Admission Control).
2. Click Add; the following dialog box appears:
Figure 35-1: Admission Control Page - Add Record Dialog Box
3. Configure an Admission Control rule according to the parameters described in the
table below.
4. Click Submit, and then save ("burn") your settings to flash memory.
Table 35-1: Admission Control Table Parameter Description
Parameter
Index
[SBCAdmissionControl_Index]
Admission Name
CLI: admission-name
[SBCAdmissionControl_AdmissionControlName]
Limit Type
User's Manual
iteration. This is accessed from two places:
Description
Defines an index number for the new table
record.
Defines an arbitrary name to easily identify the
Admission Control rule.
The valid value is a string of up to 20
characters. By default, no value is defined.
Defines the entity to which the rule applies.
540
Mediant 800B MSBR
one during initial
Document #: LTRT-12813