METHOD AND DEVICE FOR ADJUSTING THE RELAYING STATE

摘要

A method and a device for adjusting the relay state are provided, wherein the method includes that if a media gateway controller receives a request for new service and thus uses a relay circuit, then it sends an adding command message to a media gateway; after receiving the adding command message, the media gateway checks that the relay circuit is unavailable and could not implement the process for the adding command message successfully; the media gateway sends to the media gateway controller an error response message and a state report message indicating that the relay circuit is unavailable; and after receiving the state report message, the media gateway controller modifies its state information on the relay circuit based on the state report message and returns a response message to the media gateway. As a result, based on the H.248/Megaco protocol, the invention solves the phenomenon of the relay circuit states inconsistent wherein the MGC considers a relay circuit state as normal while the MGW considers the relay circuit state as abnormal, and the invention could deal with this phenomenon quickly and simply, therefore the call loss could be reduced.