A portable communication device (10) comprises a housing (11) which accommodates a number of components enabling the user to effect two-way communications including data transfer and personal communications. The components include a selectively operable smart card sensor (18), a display device (12), a mobile electronic data communications facility to receive and transmit data communications, and a data transaction processing means (20) in data communication with the smart card sensor, the display device and the data communications facility. Such a portable device includes a ROM for storing a device-call-sign. The mobile data communications facility receives call-signs transmitted by a remote facility, and the processing means determines whether the received call-sign matches the device-call-sign stored in the ROM. If the received call-sign matches the device-call-sign then the device transmits a reply.
|Patent number||EP 0 966 139 A2|
|IPC||G06F13/00,H04M 1/72,H04Q 7/32|
|Publication status||Published - 22 Dec 1999|