The invention relates to a machine tool monitoring device with an identification unit for identifying the operating situation of a machine tool. A responsive instruction is received from the real-time interaction client through the gateway interface. The first engagement portion and second engagement portion are engageable to define different positions between the lid and the base, including selective one-way engagement between a first opened arrangement between the lid and the base and a second opened arrangement between the lid and the base, as well as a closed position between the lid and the base. The cradle includes anterior, posterior, superior, inferior, and lateral cradle sections. In another embodiment maximum likelihood estimation techniques are used to develop common decision tree frameworks that may be shared across all speakers when constructing the eigenvoice representation of speaker space. The cache can include multiple sets of tagdata arrays, each dedicated to commands with a particular priority.