A cellular radiotelephone (user terminal) (10) includes a keypad (22) having a plurality of keys (22a, 22b) and a display device (20) for displaying information, including messages, to a user. A method includes the steps of providing the user terminal with an access code for a destination receiving device,...http://www.google.es/patents/US6233450?utm_source=gb-gplus-sharePatente US6233450 - Calling number identification for a radiotelephone operating within a public or autonomous system
Calling number identification for a radiotelephone operating within a public ...
