A radiotelephone (10) simulates the call origination process performed by land-line telephones. Dial tone is generated (78) in response to an off-hook condition and removed when a first digit (54) is dialed. A timer process (84, 110) and a number analysis process (100) simultaneously evaluate dialed...http://www.google.fr/patents/US5535260?utm_source=gb-gplus-shareBrevet US5535260 - Cellular radiotelephone with dialed number analysis
Cellular radiotelephone with dialed number analysis
