Global wireless prepaid roaming
US6684072B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2000 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Nov 4, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A global prepaid roaming services method and apparatus is described in which a roaming phone located in a first region places an outgoing call to a destination party in a second region, and responsive to placing the call, a service processing node (SPN) establishes a first call connection between the roaming phone and the SPN, a second call connection between the SPN and the destination party is established and the SPN bridges the first and second call connections to establish a call connection between the roaming phone and the destination party. Incoming calls originating in a first region made to a wireless phone roaming in a second region are established by signaling from the first region to a home region associated with the wireless phone in order to determine that the wireless phone is roaming in the second region; signaling a cellular-switching center (CSC) in the second region, responsive to the determination that the wireless phone is roaming in the second region, to inform the CSC in the second region of a call connection request to the wireless phone; routing the call, responsive to the call connection request, from the CSC in the second region to a service processing nod…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.