The modified centrifugal fan wheel comprises a hollow hub and a set of blade. In an Internet Protocol Multimedia Subsystem network in a wireless communication system, an MS transmits a temporary login request to an IMS server by using a subscriber identity as a virtual Private Identity and receives information about registered PRIDs that are associated with the subscriber ID. The machine collects basketballs that are shot in the direction of a basketball goal and returns them to the user at one or more locations around the return machine’s perimeter. In an AIN environment, the blocking mechanism can include a switch control point configured to access a termination blocking list. Thus, in addition to the position of the wireless transceiver devices, factors such as the rate of travel, the direction of travel and the likely mode of transportation are also considered to more precisely identify the appropriate service.