Communications between the public switched telephone network and packetized data networks
US6198738A · kind A · utility
139Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1997 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Apr 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/45
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for completing intra-data-network calls and calls between a public switched telephone network (PSTN) and a data network. For the case of an Internet data network, an Internet Phone Register is provided to identify the User Location Service (ULS) server that stores the temporary Internet Protocol Address (TIPA) of a called terminal. Advantageously, the TIPA of any called terminal can then be readily obtained by querying that ULS server.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.