Abstract: A security system for wireless devices such as mobile phones includes a wireless signal transmitter, and a signal strength detector and microprocessor associated with the wireless device being safeguarded. The microprocessor disables or locks the wireless device if the measurement by the detector of the strength of the signal transmitted by the wireless transmitter is less than a predetermined value, thereby indicating that there is more than a predetermined separation distance between the protected device and the transmitter, i.e., that, e.g., someone has taken the device. The disabled wireless device stays disabled until the measured signal strength is again greater than the predetermined value. Once this value is reached the device is automatically unlocked or enabled.

Abstract: A mobile platform for use in a mobile communications network. The mobile platform includes an alphanumeric input device adapted to receive alphanumeric input from a user as an input alphanumeric string; memory; and a processor coupled to the alphanumeric input device and the memory. The processor receives the input alphanumeric string; replaces one or more characters within the input alphanumeric string with its numeric equivalent to generate an output numeric string; and initiates a dialed call using the output numeric string.

Abstract: A server for use in a mobile communications network to convert an input alphanumeric string into an output numeric string. The server includes an input gateway to receive the input alphanumeric string; memory; and a processor coupled to the input gateway and the memory. The processor is operable to receive the input alphanumeric string; replace one or more characters within the input alphanumeric string with its numeric equivalent to generate an output numeric string; and return the output numeric string.

Abstract: A server for use in a mobile communications network to convert an input alphanumeric string into an output numeric string. The server includes an input gateway to receive the input alphanumeric string; memory; and a processor coupled to the input gateway and the memory. The processor is operable to receive the input alphanumeric string; replace one or more characters within the input alphanumeric string with its numeric equivalent to generate an output numeric string; and return the output numeric string.

Abstract: A mobile platform for use in a mobile communications network. The mobile platform includes an alphanumeric input device adapted to receive alphanumeric input from a user as an input alphanumeric string; memory; and a processor coupled to the alphanumeric input device and the memory. The processor receives the input alphanumeric string; replaces one or more characters within the input alphanumeric string with its numeric equivalent to generate an output numeric string; and initiates a dialed call using the output numeric string.