Using internet and internet protocols to bypass PSTN, GSM map, and ANSI-41 networks for wireless telephone call delivery
US6603761B1 · kind B1 · utility
107Cited by
9References
64Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2000 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Jan 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system to provide GSM subscribers roaming into CDMA or TDMA networks, and CDMA or TDMA subscribers roaming into GSM networks, with basic call delivery wireless services as long as the roamers can pay the bill with their valid credit card, and to do so independently of and as a bypass of GSM Memorandum of Understandings for cellular/PCS services. This is achieved by integrating the proper pieces of wireless and wireline networks and secure communications, using IP networks and protocols as an alternative to the existing telephony-based approach.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.