Abstract: A method of activating a mobile station used in a cellular network system provides subsidy protection for a cellular operator. The method comprises the steps of installing a subscriber identity module (SIM) in the mobile station, the SIM having an IMSI file and storing the first indicia uniquely identifying the cellular operator, the mobile station storing second indicia uniquely identifying the cellular operator; comparing the first indicia to the second indicia to determine if the SIM and the mobile station are valid for the cellular operator; and if the SIM and the mobile station are valid, then storing a mobile identity number in the IMSI file of the SIM.

Abstract: Communication devices, methods, and computer program products may be used to transmit information to a destination by associating a voice command with the destination and associating a signaling message with the voice command and with the destination. After establishing communication with the destination, speech input that is received from a user is compared with the voice command to determine if there is a match. If the speech input matches the voice command, then the signaling message associated with the voice command is transmitted to the destination. A user may therefore be relieved of the burden of having to remember the keystrokes to perform a specific operation or function by embedding the signal(s) corresponding to the operation in the signaling message. Moreover, because the signaling message is associated with both the voice command and the destination, the same voice command may be used to perform an operation on more than one destination.