Delivering calls to GSM subscribers roaming to CDMA networks via IP tunnels
US6526033B1 · kind B1 · utility
74Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1999 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Sep 17, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method and system integrating wireless/wireline and circuit/packet networks (to bypass GSM Memorandum of Understandings) for cellular/PCS services so that GSM subscribers roaming into CDMA networks can be provided with basic call delivery cellular services as long as the roamers can pay the bill with their valid credit card. This is achieved by integrating wireless and wireline networks as well as circuit and packet networks, 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.