1. A method for controlling reporting of a timestamp of an event, comprising: sending, by a Media Gateway Controller, a timestamp control parameter to a Media Gateway, or presetting the timestamp control parameter on the Media Gateway, wherein value of the timestamp control parameter comprises at least one of the values of Requested, Suppressed, Automatic; and determining, according to the timestamp control parameter, by the Media Gateway, whether to include the timestamp parameter of the event when reporting the event wherein the Media Gateway determines to include the timestamp of the event if the value of the timestamp control parameter is Requested; the Media Gateway determines not to include the timestamp of the event when reporting the event, if the value of the timestamp control parameter is Suppressed; and the Media Gateway determines whether to include the timestamp of the event if the value of the timestamp control parameter is Automatic.