IP Traffic Management Element
IP Traffic Management, also called Call Admission Control, gives the IMG 2020 the ability to limit the number of simultaneous calls that can be active between an IP Network Element (External Gateway) and a SIP Channel Group configured on the IMG 2020. IP traffic limits are applied to the combined total of incoming and outgoing calls per channel group. To create the IP Traffic Management Element object, right click on the IP Traffic Management object and select New IP Traffic Manage Element.
Web GUI Page
Dialogic > Security > IP Traffic Management > New IP Traffic Management Element
Maximum Objects
1,024 Traffic Management elements per IP Traffic Management object.
Related Topics and Dependencies
The IP Traffic Management Element is created under the IP Traffic Management object. The IP Traffic Management Element gives the IMG 2020 the ability to monitor and limit the traffic between a IMG 2020 and one or more external SIP network elements such as a SIP Gateway. (The SIP Gateway must first be configured as an External Network Element). The configured SIP Gateways must then be associated with a SIP Channel Group by being added to the channel group through the IP Network Element object. Refer to the IP Network Element object topic link below.
Traffic Restrictions are upheld in both ingress and egress directions.
Field Descriptions
Network Element
The External Gateway upon which the traffic restrictions will be applied. This field is a drop-down list of all the configured External Gateways that are also configured as Network Elements to a channel group.
Simultaneous Sessions
The Simultaneous Sessions field is a drop down menu displaying the maximum number of sessions that can be configured to be active at any one time between the designated network elements and the IMG 2020. The range is from 0 - 1024 calls.
Example Call Trace
The following is an example of what would appear in the call trace for every call to or from a gateway under IP restrictions.
CALL> 16:16:48.480 CALL(L4) (00:7040:01) IP Traffic Management: Resource Group ID: 2 583 Busy Count: 55 Channels Allowed: 300
Error Responses
SIP - If a SIP call is rejected because the maximum number of calls is reached, the IMG 2020 will send a 503 Service Unavailable response back to the originating gateway.