Understanding Call Admission Control Configuration

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Understanding Call Admission Control Configuration

Problem Summary Understanding Call Admission Control Configuration
Error Message N/A
Possible Cause N/A
Recommended Action

Call Admission Control is designed to “protect” Media Broker component against overloading when one is being selected to handle a new call.

It can be configured from the Remote Expert Mobile web plugin framework:

Gateway -> General Administration page.

Note that Call Admission Control is enabled “out of the box”, with Max Load Factor set to "75".

With Call Admission Control being enabled, if a Media Broker is deemed unable to handle another call, the Remote Expert Mobile Application Server will attempt to select another Media Broker. 

Below are configurable fields explained:

  •  Max Load Factor – The maximum Media Broker load limit. When a call is assigned to a particular Media Broker, the Media Broker will reject the call if its current load factor is at, or above, this value – this will cause the Remote Expert Mobile Application Server to choose another Media Broker (if one is available).

Note that a value of “0” in this field will disable this function i.e. no check will be made

  •  SDP Control Request Timeout – The maximum number of milliseconds to wait for SDP control requests to complete between the Remote Expert Mobile Application Server and Media Brokers. If the request does not complete within this timeout period, the Remote Expert Mobile Application Server will try another Media Broker.If all MBs are overloaded then the call is immediately rejected.
Release Remote Expert Mobile
Associated CDETS # None


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