Method and apparatus for supporting enhanced international dialing in cellular systems
US7715829B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2005 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Sep 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/724
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided that support enhanced international dialing in cellular systems using handset based code dialing. According to one aspect, the handset analyzes the dialed digits before sending the dialed number to the network. If the dialed digits begin with the country code of the area from which the call is placed, the country code will be removed and a national access code will be added in front of the digit strings. For international calls the dialed number may begin with a + indicator, followed by a country coded, an area code, and a customer number. The digit string is automatically translated into a new number based on the numbering plan of the area in which a call is being placed. The new number can then be sent to the network to set up the call.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.