Tunnelling voice over the internet protocol in a cellular network
US6751207B1 · kind B1 · utility
46Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2000 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Aug 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for tunneling voice over the Internet Protocol (IP) in a cellular network. A Mobile Identification Number (MIN) of a non-IP-enabled handset is mapped to the IP address of a component of a cellular network in communication with that handset. A sub-index is assigned to the handset by the component, wherein the sub-index acts as an extension to the IP Address of the component, so that a non-IP-enabled handset can be correctly identified within the cellular network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.