| 摘要 |
The present invention provides an overload control method for an access media gateway and the corresponding access media gateway. The access media gateway restricts call of a subscriber coupled thereto and acting as a calling side or a called side. Different overload levels and calls with high priority to be guaranteed for the respective overload levels are set at the access media gateway. The subscriber of the access media gateway acting as a calling side or a called side determines an overload level upon detection of its own overload, judges whether the call is a call with high priority to be guaranteed for the overload level. If it is a call with high priority to be guaranteed for the overload level, the call is processed in accordance with a normal call flow; otherwise, the call is rejected. The present invention protects an AG system from breakdown at a high traffic load, and efficiently guarantees connection of the call with high priority including an emergency call and/or a call via a subscriber port with high priority, which can reduce dependence on the MGC, prevent the MGC from overload and rapidly alleviate the overload of the AG, so that the time period in which the service is influenced is shortened.
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