The present invention provides a multimedia connector reader device, wherein when a portable digital device is plugged into a connector interface within a holder slot, functionality of a transmission control circuit enables data stored in a memory card of the portable digital device to be accessed, and a connector port enables connectivity to another different type of portable digital device. The disappearing ball seat includes, a tubular member having an inside dimension, and a restricted dimension portion of the tubular member dimensioned to prevent passage of a tripping ball therethrough, the restricted dimension portion being reconfigurable to a dimension capable of passing the tripping ball therethrough. In a preferred embodiment, the subscriber of the messaging system is preferably enabled to specify multiple greeting announcements by caller for playing prior to switching to a single subscriber mailbox at the messaging system. Included in these operations are tracking the completion of the write access and the corresponding write to the associated cache directory and copying the cache directory state to be updated from the parent queue so that the parent queue’s update of the directory state is included when the first queue writes to the directory. As such, the supply voltage of the semiconductor element can be adjusted more precisely in the function test. The control apparatus transmits, to a switch, two or more flow entries having an identical match condition but having different processing content to be applied, and a condition for changing application priorities of the two or more flow entries.