Method and Equipment for Supporting Enhanced International Dialing in Cellular Telecommunication Systems

摘要

METHOD AND EQUIPMENT TO SUPPORT IMPROVED INTERNATIONAL DIALING IN CELLULAR TELECOMMUNICATION SYSTEMS. A method and apparatus is provided that supports enhanced international dialing in cellular systems using handset-based code dialing. In one aspect, the handset analyzes the dialed digits before sending the dialed number to the network. If dialed digits start with the country code of the area from which the call is made, the country code will be removed and a national access code will be added in front of the digit sequences. For international calls the dialed number can start with a + indicator, followed by a country code, an area code, and a customer number. The sequence of digits is automatically converted to a new number based on the numbering plan of the area in which a call is being made. The new number can then be sent to the network to establish the call.