| 摘要 |
A wireless communication unit (1135, 1145, 1120, 1125, 1130) may be provided individually or as a set to provide amongst the set of communication devices, and selectively with other communication units on a limited basis. At least one communication unit (1135, 1145) is provided with a limited communication capability such that the communication unit can only dial an identification code of, and communicate with, an associated communication unit. The communication unit (1120, 1125, 1130) cannot dial an identification code of, and communicate with, an unauthorized communication unit (1165), that is not associated with the communication unit and is not an emergency assistance entity (1160) or a communication system administrator (1155). The communication unit with limited communication capability may be more simplistic to use than a conventional wireless phone by reducing the number of buttons operations necessary to communicate with other communication devices. |
