A monitoring computer (115) monitors a communication resource within a wireless communication system for transmissions by a communication unit. Upon detecting the transmission, which contains a service request, the monitoring computer compares the service request with stored service access...http://www.google.fr/patents/US5678197?utm_source=gb-gplus-shareBrevet US5678197 - Method for reprogramming a communication unit's access to a wireless communication system
Method for reprogramming a communication unit's access to a wireless ...
