Calling method, device, and system
US8346301B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2009 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Apr 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A calling method, device and system are disclosed. The calling method includes: obtaining, by a service platform, subscription information of a roaming prepaid subscriber, modifying and sending the modified subscription information to a visited mobile switching center (VMSC) of the roaming prepaid subscriber so that a call initiated by the roaming prepaid subscriber could be triggered to the service platform by the VMSC; receiving, by the service platform, the call to a called subscriber initiated by the roaming prepaid subscriber and triggered by the VMSC; and instructing, by the service platform, the VMSC to release the call and instructing a call connection device to connect the roaming prepaid subscriber to the called subscriber after determining from the call that the roaming prepaid subscriber has activated a callback service. User operation is simplified and user's experience is improved with the method, device and system in accordance with the embodiments of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.