Communication system and communication method
US8165579B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2007 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Apr 1, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication system and communication method with which an incoming call processing can be prevented from falling into a loop state when a communication mode for the incoming call destination is determined. When an inquiry reception unit receives an inquiry signal representing an incoming call destination inquiry from a GMSC, a flag judgment unit judges whether an identification flag has been added. In cases where judgment is made that an identification flag has not been added, a response unit sends back a routing number of a CCCF/NeDS assigned to the GMSC and, in cases where judgment is made that an identification flag has been added, a VMSC inquiry unit acquires in-range information regarding the mobile device from a VMSC which is a visited mobile-services switching center, and the acquired in-range information acquired by the response unit is sent back to the GMSC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.