Patent ID: 7693141

Claim:
A method for switching a state of a Termination in a Media Gateway (MG), comprising: exchanging, between a Media Gateway Controller (MGC) and an MG controlled by the MGC, a ServiceChange request for a Termination in the MG, carrying a parameter used for instructing the Termination to enter a Test state in the ServiceChange request; testing, by the MG, the Termination according to the parameter used for instructing the Termination to be in a Test state, wherein carrying the parameter used for instructing the Termination to enter the Test state in the ServiceChange request comprises: adding a value denoting the Test state for a Reason parameter of the ServiceChange request; and setting the value of the Reason parameter of the ServiceChange request for the Termination as the value denoting the Test state, and setting the value of a Method parameter of the ServiceChange request for the Termination as Restart.