User's Manual 550 Document #: LTRT-10466
Mediant 500L MSBR
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 480 "Temporarily
Unavailable" 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 iteration. This is accessed from tw
o places: one during initial
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 34-1: 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 34-1: Admission Control Table Parameter Description
Parameter Description
Index
[SBCAdmissionControl_Ind
ex]
Defines an index number for the new table record.
Admission Name
CLI: admission-name
[SBCAdmissionControl_Ad
missionControlName]
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.
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